[yanivlib]

My only rule is that I won't work on stuff that makes the world a worse place. I don't have to work on something that necessarily makes the world a better place, just not actively make it worse. It rules out a surprising number of jobs.

[dsacco]

In general I think people very rarely do work they honestly believe makes the world a worse place. That rule you have is probably implicitly or explicitly shared by the majority of people. They just happen to disagree with you on which things make the world worse.