I would disagree about the Femme Fatale issue. A Femme Fatale is someone who uses their femininity as a weapon. Bayonetta, classic Laura Croft and of course the likes of Mata Hari all used their sexuality as a weapon. It creates a double standard, when James Bound hits on everything that breaths by exploiting his sexual draw and it is okay, but a woman doing it is only something you would do if you were an anti-hero or morally ambiguous? We aren't talking about breaking someone's heart, we are talking about reverse engineering objectification as a weapon. No more amoral than using a gun or sword to fight evil. Evil uses those things too, but they aren't evil because of it, it is a simple method.
To get timid about that and to take sex out of the equation means we would be categorizing people by being mildly flirty, or worse just romantics. We wouldn't have a category for those who exploit sex but everyone who bats their eyes. I say we stay away from that level of ambiguity and be as definitive as possible.