There are certainly a fairly large group of people who are inclined to refer to others as "do-gooders" but I think this usually this is a consequence of not thinking of things in terms of wrong and right, but in terms of winners and losers. They adopt stereotypically villainous traits mockingly, to display their contempt for people they think are inferior to them. I know and see a lot of businessmen and commentators like that, but not many politicians, at least above the level of the president of the Young Tory or Debating society.

Similarly people who decide that the most important thing to do is to smash some "the other side" they can't credibly be cast as oppressive tend to adopt villainous traits.