Comment by robocat

But is the world better off if moral people avoid immoral jobs?

I believe the world shows there is plenty enough supply of talented people that are willing to do immoral jobs. So removing yourself from the pool of candidates makes little difference.

Alternatively, one could work in an immoral job and make a difference from the inside.

Why not do that? Perhaps to feel impotently virtuous, or perhaps the work couldn’t be stomached by the virtuous, or perhaps the virtuous but weak are scared of losing their virtuousness...