Cathy/Kate and Faye

I thought there was some good vs. evil with Kate and Faye's relationship. Obviously Kate was the evil, and although Faye did run a whorehouse she was a good person so she represented the good. Kate took advantage of Faye's goodness and ended up killing her. So evil won

And because evil won, yet again, this shows Kate's love for goodness. And by love for goodness I mean that she loves the existence of goodness. It is like her power source. She destroys other people's goodness, which makes her happy and satisfied. It keeps her stable.