Welcome to Deontological Ethics!
Hello and welcome to your revision guide for Deontological approaches to moral decision making. This topic forms a crucial foundation for Unit AS 7: Foundations of Ethics with Special Reference to Issues in Medical Ethics.
Don't worry if ethical terminology feels intimidating at first. By breaking these theories down step-by-step, you will quickly see how easy they are to understand and apply to real-life medical dilemmas. In your 1 hour 20 minute exam, you will need both AO1 (Knowledge and Understanding) and AO2 (Analysis and Evaluation) skills, and these notes will give you the exact tools to excel in both.
1. What is Deontology?
The word deontology comes from the Greek word deon, meaning "duty" or "obligation".
In simple terms, deontology is an ethical approach where the morality of an action depends on whether the action itself is right or wrong according to a strict set of rules or duties, not on the consequences it produces.
Key Characteristics of Deontological Ethics:
• Duty-based: You perform an action because it is your moral duty, not because of what might happen afterwards.
• Absolutist and Objective: Moral rules apply to everyone, everywhere, at all times, regardless of the situation.
• Focus on the Act: The act itself is intrinsically right or wrong (for example, lying or murder is always wrong, no matter the outcome).
Analogy from Everyday Life:
Think of the rules of the road. A red traffic light means "Stop". A deontologist stops at a red light because it is the absolute rule to stop, even if the road is completely empty at 3:00 AM and running it would harm no one. The rule itself is what matters!
Common Pitfall to Avoid:
Never say a deontologist chooses an action because it "helps people" or "brings about the best result". That is teleological (consequentialist) thinking! A deontologist acts purely out of obedience to a rule or moral duty.
Key Takeaway: Deontology teaches that certain actions are intrinsically right or wrong. Consequences do not determine morality—duty and rules do.
2. Natural Law (Thomas Aquinas)
Natural Law is a religious, deontological, and absolutist ethical theory developed by the Christian theologian Thomas Aquinas. Aquinas believed that God created an ordered universe and gave humans the gift of reason to discover moral truths.
The Primary Precepts
Aquinas argued that through reason, humans can identify five fundamental, universal purposes for human life known as the Primary Precepts:
1. Preservation of life: Protecting and sustaining human life.
2. Reproduction: Procreating and continuing the human species.
3. Education of children: Nurturing and teaching the young.
4. Living in an ordered society: Maintaining social harmony and justice.
5. Worshipping God: Acknowledging and honouring the Creator.
Memory Aid (Mnemonic): Remember P-R-E-L-W
• Preserve life
• Reproduce
• Educate children
• Live in an ordered society
• Worship God
The Secondary Precepts
While the Primary Precepts are fixed and general, humans use their practical reason to deduce specific rules called Secondary Precepts.
• Example: From the Primary Precept "Preservation of life", we deduce the Secondary Precept "Do not kill" or "Do not perform euthanasia".
• Example: From "Reproduction", we deduce rules that protect the natural reproductive process.
The Principle of Double Effect
What happens when performing a good moral duty accidentally causes a bad outcome? Aquinas provided the Principle of Double Effect to resolve difficult moral dilemmas.
This principle states that an action with two effects (one good and one bad) is morally permissible if and only if:
1. The intention must be good: The agent strictly intends the good effect (the bad effect must be an unintended side effect).
2. The bad effect is not the means: You cannot use the bad effect directly to achieve the good effect.
3. Proportionate reason: There must be a sufficiently serious reason to permit the foreseen bad outcome.
Medical Example:
A pregnant woman requires life-saving surgery to remove a cancerous uterus. The intention is purely to save the mother's life (a good effect upholding the preservation of life). The tragic death of the foetus is an unintended, foreseen side effect, not the direct means of saving the mother. Under the Principle of Double Effect, this action is morally permitted.
Key Takeaway: Natural Law relies on human reason to follow five Primary Precepts. When duties conflict, the Principle of Double Effect guides decision-making based on the agent's core intention.
3. Kantian Ethics (Immanuel Kant)
Unlike Natural Law, Kantian Ethics is a secular (non-religious) deontological theory developed by the German philosopher Immanuel Kant. Kant believed morality should be based entirely on pure human reason, free from emotion or religious authority.
The Good Will and Duty
Kant famously argued that the only thing that is "good without qualification" is a Good Will.
• Doing the right thing because you feel like it, or because you feel sympathy, has no true moral worth for Kant.
• Moral actions must be carried out purely out of a sense of duty for duty's sake.
The Categorical Imperative
Kant distinguished between commands of reason. While hypothetical imperatives are conditional (e.g., "If you want to pass, study"), moral duties are Categorical Imperatives—unconditional commands that must be followed in every situation.
Kant formulated key tests to help us determine our duty:
1. The Formula of Universal Law:
"Act only according to that maxim whereby you can at the same time will that it should become a universal law."
• How it works: Before acting, ask yourself: "What if everyone in the world did this all the time?" If universalising your rule creates a logical contradiction (e.g., if everyone made lying promises, the concept of a promise would collapse), the action is strictly forbidden.
2. The Formula of Humanity (The End in Itself):
"Act in such a way that you treat humanity... always at the same time as an end and never merely as a means."
• How it works: Human beings possess rational capacity and dignity. You must never treat a person simply as an instrument or tool to achieve a goal. You must respect their intrinsic value.
Common Pitfall to Avoid:
When quoting the Formula of Humanity in exams, do not simply write "treat people nicely" or "don't use people". Use the formal phrasing: treat humans "always as an end and never merely as a means".
Key Takeaway: Kantian Ethics requires rational agents to act purely out of duty from a Good Will, following categorical commands that can be universalised and that respect human dignity.
4. Deontology in Medical Ethics
In Unit AS 7, you will apply deontological principles to modern medical issues. Two major concepts lie at the heart of this discussion:
1. Sanctity of Life
• Definition: The belief that all human life is sacred, intrinsically valuable, and created by God (in religious terms) or inherently worthy of respect (in secular terms).
• Deontological View: Life must be protected in all circumstances. Rules against killing are absolute.
• Contrast with Quality of Life: The teleological "Quality of Life" argument suggests that human life is only valuable if certain standards of health, happiness, or consciousness are met. Deontologists reject this, insisting that life has intrinsic value regardless of its condition.
2. Autonomy
• Definition: The moral right of an individual to make self-governing decisions about their own body and medical treatment.
• In Kantian Ethics: Kant heavily values autonomy because humans are rational beings capable of moral choice.
• Tension in Medicine: A patient's autonomy may conflict with strict deontological rules (for example, if an autonomous patient requests voluntary euthanasia, a Natural Law theorist would still refuse because preserving life is an absolute precept).
Key Takeaway: Deontological medical ethics prioritises the intrinsic value of life (Sanctity of Life) and rational human dignity, often coming into tension with modern demands for personal autonomy and quality of life assessments.
5. Evaluating Deontology (AO2 Skills)
To reach the highest mark bands in your AS 7 exam, you must evaluate the strengths and weaknesses of deontological ethics, contrasting them with teleological theories like Utilitarianism or Situation Ethics.
Strengths of Deontological Approaches
• Clarity and Certainty: Clear, objective rules make decision-making straightforward. You do not have to guess future consequences.
• Protection of Rights: Kant's Formula of Humanity ensures vulnerable patients are never exploited, used in unsafe medical trials, or sacrificed for the "greater good".
• Universal Equality: Every human life is granted intrinsic worth under the Sanctity of Life, preventing discrimination against those with illnesses or disabilities.
Weaknesses and Counter-Arguments
• Inflexibility: Absolute rules cannot adapt to tragic, complex medical circumstances where strict adherence causes extreme suffering.
• Conflicting Duties: Deontology struggles when two absolute duties clash (e.g., telling the truth versus protecting an innocent life).
• Neglect of Consequences: Teleological theories (like Utilitarianism) argue that it is morally irresponsible and uncompassionate to ignore the real-world outcomes and suffering caused by an action.
• Lack of Compassion in Hard Cases: Situation Ethics argues that love (agape) should override rigid legalistic rules in extreme medical dilemmas.
Quick Revision Checklist
Before moving on, make sure you can answer these questions with confidence:
• Can you define deontology and explain why it rejects consequentialism?
• Can you list Aquinas's five Primary Precepts from memory (P-R-E-L-W)?
• What are the three essential conditions for Aquinas's Principle of Double Effect?
• Can you accurately state Kant's Formula of Universal Law and Formula of Humanity?
• Can you contrast the Sanctity of Life with the Quality of Life argument in a medical context?
• Can you evaluate one strength and one weakness of deontology using Utilitarianism or Situation Ethics as a counterpoint?