Well, honestly, she's never been all that villainous. Every now and then she tries to beat up Justice Leaguers, and once, she took an assassination contract, mostly out of fear for her own life. The Union of Psychopaths, Megalomaniacs, Evil Geniuses and Costumed Killers (North American chapter) isn't exactly going to be giving her any awards for Excellence in the Field of Snidely Whiplash Shenanigans anytime soon.