One thing shown by modern politics is that you're absolutely correct: Plenty of people in modern society are happy to act (and in particular, vote) in a way tha

One thing shown by modern politics is that you're absolutely correct: Plenty of people in modern society are happy to act (and in particular, vote) in a way that will hurt them as long as they think someone who deserves it will be hurt more. Not to mention that some people simply won't be hurt by things that other people can't handle.