I think men often want women they can dominate to some degree. I don't mean this in a bad way, I just mean they want to be the leader. Some men see the woman's potential financial independence as undermining this, and others really don't have any problem with it and dont' make that the focus. For women I think it's good to have a job that pays well but they should never use that as some kind of power play.
I think one reason there might be a racial disparity is the level of impulsiveness is different. Blacks are usually found to be more impulsive in studies, and less able to see the consequences of actions long term. So they may more easily give in to temptations for that reason. Other people have the same temptations though, and also often fall for it. It's the sad condition of modern society.