Dimensions of ethics

Story hook

In 1971, a young Princeton philosopher named Peter Singer wrote an essay titled "Famine, Affluence, and Morality." East Pakistan (now Bangladesh) was in crisis — refugees were dying by the thousand. Singer's argument was startling: if it is in our power to prevent something bad from happening, without sacrificing anything of comparable moral importance, we ought, morally, to do it.

The essay landed like a grenade. Critics objected: "But people don't behave that way!" Singer's reply was sharp: "You're confusing what people do with what they should do. The fact that we don't is a sociological observation. The fact that we should is a moral claim."

That single retort captures the deepest divide in ethics. There is ethics as a description of what people actually do (sociology), ethics as a prescription of what they ought to do (philosophy), and ethics about ethics itself — what does "ought" even mean? Three floors of the same building, often confused, frequently weaponised in political debate. GS-IV asks you to walk all three.

Why this matters for UPSC

The "three dimensions" framework is the conceptual grammar of GS-IV. UPSC asked direct questions on "What is the difference between descriptive and normative ethics?" in 2017 and "Examine the relevance of meta-ethics for a public servant" in 2021. Beyond direct questions, every case study in Section B of the paper expects you to deploy normative reasoning (consequentialist vs deontological) to justify your decision. This unit teaches you the vocabulary.