Heroes are boring. It's an inescapable truth. "Ooh, look at us, we're following the rules." Boring! Villains are so much cooler. And they get to kill people, all the time, which is awesome. Sometimes, when people get tired of somebody doing the same things over and over again, it's okay to just make them inexplicably a twisted psychopath bent on complete evil regardless of any previously existing characterizations. These characters get sent to Hero rehab where they get over themselves, get the sticks out of their asses and learn to have some fun.