Dear me, how patronizing.
The reason, by the way, that leadership is often correlated with extroversion is more to do with American ideals of the perfect citizen since about the time of Dale Carnegie than due to any actual results.
In fact many successful CEOs are introverts, because deep critical thinking and mediation tend to be useful qualities, surprisingly enough.
Not in finance though. And the world of finance has had a smooth ride, alright.