I think, when it comes to male-female relationships, Paradise Lust is a fairy tale. In reality, Jack who has a "nice guy" syndrom, would end up as an errand boy of all those women in exchange for a smile and "You are a great friend" talk and that's it. And this is in a best case scenario. In a worst case scenario half of them would jump on Rick cock regardless of him being an asshole.
Sure, even "nice guy" can get some interest from females, but that kind of females definitely aren't on beauty pageant ship.