I play a lot of sports and despite my lack of physical ability, I do my fair share of winning. I find tall people to be mostly uncoordinated boobs. If you are tall and coordinated, you are probably a pro athlete, but the rest of them are awkward and generally clumsy.
I'm 5-9 and I DO HAVE SHORT MAN'S SYNDROME, in that when I see a tall person, I'm thinking "fresh meat, I'm going to grind him to a pulp". I like being short for athletics. It makes me an aggressive person in all other aspects of life.
There’s also another truth- human male bones stop growing when the body begins producing large doses of testosterone- which, in turn drives aggression. If you look at short people, most of them are hairier than the tall, lanky ones. This is another side-effect of early-onset puberty.
The aggression is probably what drives them to success.
I played Wide Receiver on my Sorority's Powder Puff Football team. The first time a little 5'2” sister of mine laid me out looking up at the sky on a “tackle,” I thought, “All bets are off now, sister. Eat dirt!” The little ones take advantage of our magnanimous nature.