Why is it worse to be assaulted by someone you know than by a stranger? Answer: it isn't.
And no women are not far more likely to be victims of violence... research shows over and over again that men are victims of domestic violence just as often as women. For all other forms of violence men are far, far more likely to be victims that women.
Under reporting? Who is more likely not to go to police, a woman assaulted by her husband or a man assaulted by his wife? Answer: men.
As for wealth - well it isn't really important who makes the money, what's important is who spends it and that's women.