Why this matters now
The three theories are the backbone of GS-4 — knowing them lets you analyse case studies from multiple angles and enrich every ethics answer.
Consequentialism (Utilitarianism)
Consequentialism judges an act by its outcomes. Its main form, Utilitarianism (Bentham, J.S. Mill), holds that the right action is the one producing the “greatest happiness of the greatest number”. Strength: practical, results-focused, useful in policy. Limitation: can justify harming a minority for the majority and ignores intentions/rights.
Deontology (Kant)
Deontology judges an act by duty and rules, regardless of consequences. Immanuel Kant’s categorical imperative says: act only on a maxim you could will to be a universal law, and treat humanity always as an end, never merely as a means. Strength: upholds duty, rights and human dignity. Limitation: rigid; can ignore real-world outcomes and lead to conflicting duties.
Virtue Ethics (Aristotle)
Virtue ethics focuses on the character of the person, not the act or its consequences. Aristotle held that we should cultivate virtues (courage, honesty, justice) — the “golden mean” between extremes — to achieve eudaimonia (human flourishing). Strength: holistic, emphasises moral development. Limitation: gives less concrete guidance on specific dilemmas.
UPSC angle
Know the three theories — consequentialism/utilitarianism (outcomes, greatest happiness), deontology/Kant (duty, categorical imperative, ends-not-means), virtue ethics/Aristotle (character, golden mean) — with strengths and limits. Apply them to case studies.
Frequently asked questions
What is consequentialism?
An ethical theory that judges actions by their outcomes; utilitarianism — the greatest happiness of the greatest number — is its main form.
What is deontology?
An ethical theory that judges actions by duty and rules regardless of consequences, exemplified by Kant’s categorical imperative.
What is virtue ethics?
An approach focusing on cultivating good character traits (virtues), associated with Aristotle and the idea of the golden mean.
How are these theories useful in GS-4?
They provide multiple lenses to analyse ethical case studies and structure balanced answers.