Randomly clicking through Ted Talks and came across this one a while back: The Power of Introverts by Susan Cain.
It talks about some of the most famous introverts and how, while our society favors extroverts, introverts often deliver better outcomes. They typically end up being the backbones of society and, while they make not speak much, their self-containment makes them a happier lot.
It’s a really good talk, so I highly recommend watching it