I'm reading "Quiet: The Power of Introverts in a World That Can't Stop Talking"

We live in a culture where the loudest person in the room is often assumed to be the person with the most knowledge/expertise. In other words, the extroverts.. the Type A's and so on. As a result, they're often the ones who are put into (or take) leadership positions or roles... whether they're best-suited or not.

The author refers to this as the "culture of personality." But how did it get this way? Why?

The book is a fascinating history of how we transitioned from a "culture of character" to a "culture of personality." It's good stuff. Of course, I'm an introvert so it's naturally of interest to me, but I'd be really curious to hear an extrovert's opinion on the book.