You can make yourself feel better about yourself if you project your shadow side, if you project your own potential for evil onto someone else. By annihilating them and, therefore, your shadow, you bring yourself into some state of purity or reformation.
“I wasn't born an artist. I was really good in science as a kid. I probably shouldn't have been an artist because I'm much more interested in science. But I was raised by artists. I can't really escape it.”