The meme is not about income or physical fitness, it's about psychological aggressiveness. Highly un-aggressive men are considered emotionally unattractive and don't get dates because, for one thing, they're afraid to ask, but they're nice and dependable and will take care of you forever. Highly aggressive men come across as dynamic and interesting, and turn out to have five mistresses in three states and a warrant out for their arrest in two of them.