A million dollars is a lot more zero-sum than not killing someone - if I give you a million dollars I lose a million dollars. To make the analogy more accurate, you'd need to stipulate that Joe will kill me if I don't kill him.
No, just that you'll get some benefit from killing him, e.g., you get to have sex with his wife.
Link to Blog Post: "Extremism in Thought Experiments is No Vice"
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This is a LW discussion post for Yvain's blog posts at Slate Star Codex, as per tog's suggestion:
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