She's a seductress because seductresses have tits. It comes down to selling more units to bedroom-bound males with no taste in drawn pornography.
Honestly, neither can I. Not off the top of my head, anyway. More notably I can't name a single notable Japanese heroine. Japan's not the only country guilty of it but they definitely are to a greater extent than, say, the countries most SF members come from.
Petrine was okay but she was essentially a barely-restrained version of Inverse so whatever. Ashera was good, if a bit sadly underdeveloped as a villain.