I saw an interesting discussion of the movie "300" that sort of relates to this. Someone said that in almost every action movie, there is a woman who wants the man to stay with her and not go do the dangerous thing that's his mission in life. But, if he were the sort of man who would stay - who'd, before going off to war against the Persians, would say, "you're right honey, I should just stay here with you and the kids" - then she wouldn't have been attracted to him in the first place.

And, if he did change his mind and stay, the attraction and romance in the relationship would pretty much die right away.

That's fictional evidence-- that is, not evidence at all. All I'm sure of is it's harder to make a movie about the guy who stayed home, though you could do it if trouble came looking for him.