Keep in mind that "bad boys" don't have to be literal ghetto criminals. An aloof and kind of douchebag-like CEO can be seen as a bad boy.

I think that a lot of women find it arousing to feel a bit vulnerable in relationships. It explains why they like tall men and why a lot of them like rough sex too.

Of course, it has an expiration date. When they realize that these guys tend to make selfish fathers , they realize they made a mistake. Which is why the pattern is that women like this divorce their asshole husbands in favor of some nice guy stepdad.