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Philosophy · 12 min read · Research brief

Is doing harm worse than allowing it?

Can saving more people justify actively causing a smaller harm?

Understand the idea

Ethical disagreements often persist even when people agree on the outcomes. An outcome-focused view emphasizes the harms prevented; other views also constrain what one may do to a person. Doing versus allowing harm is one proposed distinction, while intending harm versus foreseeing it is another. These distinctions should not be collapsed. Thought experiments let a learner vary one feature at a time and test whether a moral principle remains consistent. They do not establish that intuitions alone settle an ethical theory. [S03]

Worked example

A rescue controller can redirect a threatening process away from five trapped workers toward one. Compare that with failing to operate a rescue device, and with intentionally using someone as a means of rescue. Before choosing, list which facts change and which remain fixed.

Where the idea stops

A refusal to act can still carry responsibility. Duties, consent, intention, and outcomes may conflict; several defensible ethical frameworks weigh them differently. [S03]

Connect it

Economics and history: policy tradeoffs and responsibility for foreseeable harms.

Go deeper

How do doing harm, allowing harm, and intending harm differ?

Sources

Doing vs. Allowing Harm ↗

Stanford Encyclopedia of Philosophy · Research reference · Date: 2025-07-08, substantive revision

Shows why outcomes, agency, and intention raise distinct ethical questions.

Link checked 2026-10-17 · Public webpage accessed; no specialist peer review of this brief.
Practice

Test the idea

A city must distribute a scarce rescue resource. Propose a rule and test it against an awkward counterexample.

  1. Which morally relevant feature changes between the cases?
  2. Would your rule still apply if the affected person were your friend?
  3. Can you describe the strongest objection to your own conclusion?

Use the discussion screen to submit a teach-back and application answer for feedback.