She's actually suppose to be attractive after the yule ball or something, but it the movies she was always... fashionable. That kind bothered me. She could have looked like that but looked more like she didn't brush or something. But, ah, girls will be girls and take care of their appearance even when they pretend they don't! So I guess in the end, it does work.

Please go check out Megamind! It's really hilarious!