What Constitutes Evil if You Can't Put It Into That?

The world does all sorts of terrible things to people, but they're frequent. It's frequently the case that people act in such a way to make things worse, rather than better. And this seems to be the idea that's lurking underneath both this mythology and eliatte's comment on it. But then when you look at specifically human actions, there's this aspect of twisted choice that fry also makes much of.