Made them superior?
As women and men move closer towards being "equal" (in American society at least), they're bound to do the same kinds of things. In the 50's, a woman might get beaten to a pulp for cheating on her husband, and nobody would bat an eye. Nowadays that would be a huge problem, and she will just divorce him and get half his stuff. The playing field is more level in certain respects, so women are allowed to be the same degree of scumbag as men are.