I think your theory is all wet. Single men don’t have to please a wife and can therefore devote all of their attention to their careers. Furthermore (if they llive with another guy) the salaries of the two of them (with no kids to support) can afford a nicer house and a fancier lifestyle, if that is what they want.
Moreover, I think that your categorization of “sissy” careers is ridiculous. I’ve known many “all male” hairdressers, for instance.
I think that studies actually show wives help their husbands careers. The higher education of the wife, the more it would help the husband's careers. Other studies showed the more children a man had, the more he earned.