Something I've noticed going through founder's LinkedIn pages is that it seems that entrepreneurs seem to be significantly more attractive than the average person. I assume a partial causative factor could be that the number of positive impressions you make on people with influence correlates with success of your startup, and one's capacity to make positive interpersonal impressions correlates with physical attractiv…
Attractiveness is basically fitness and low neuroticism. If you have those and enough emotional intelligence to not be a criminal, you're going to generally fail upwards. Add any one of an elite education, a stdev above average intelligence, good mentoring, self awareness, or a competition level skill, and you can get a seat a most tables.