The curious thing is that while women (speaking traditionally about relationships since this based on a theory of mating) seemingly have the intelligence to make theses complicated DNA calculations, yet, seem to be without the ability to determine a bad boys intelligence. Often they are poor students, lack creativity, and operate with ego as their guiding light. Why doesn't a woman's brain say, "yes, he's attractive and strong, bold and aggressive, but he's about as smart as a rock and his potential for meaningful growth is low." Then, there's the trust factor. A male with solid morals and evolved mind is less likely to betray trust than a self-serving, one dimensional bad boy.