>I think society is geared to rewarding the extroverts: You have to sell yourself, and BS you way to the top of the corporation or whatever group you're in.

It's a self-perpetuating observation bias. You don't see the successful introverts, because they don't go on TV talking about their amazing life journey etc.

Ergo, everyone associates success with extroverts. There's actually no natural correlation between being an extrovert and being successful, but people /think/ one exists because of observer bias, and that makes it harder for introverts to succeed because they get passed over for hiring and so forth for not being "outgoing enough to be a leader" or whatever.

The perception creates the reality.