I remember the first time I saw a group of young VCs (in Palo Alto no less) in public. Walking down the street together. They looked like male supermodels. All of them perfectly dressed, tall, good looking, triathlon physiques...
As soon as I saw this, I could sense that this business is driven by "Confirmation Bias" and "Representativeness Bias", the Halo Effect.
These guys are hiring people who look like themselves, who do the same (extreme) sports like themselves, etc. It's a case of Steve Jobs looking for someone who looks like Steve Jobs, instead of the plump, dowdy, disheveled, and genius Steve Wozniak.