Jillian's a confusing character to me, because I honestly have no idea what kind of experiences or thought process leads up to one wanting to submit to someone, much less someone that isn't a unmistakable ally. It's not that I judge her on any level, I just don't get it.

At base, she seems to be an amoral person, defining herself by the exercise of her own completely arbitrary will. She seems especially childlike somehow, perhaps because as a princess she needed noone, and had no strong authority figures to define her personality with. Maybe I answered my own question?

Wanda I can understand completely, if I assume that she is a pure manipulator, complete with the female spin. She will use whatever weak points she identifies in others to establish absolute control over everything around her. Minor idiosyncrasies may cause her to fall short of absolute world-wide control, but that's the ostensible goal in the back of her mind.