Near the end, the talk turns to university instructors:
Your whole professional life is predicated on you as the Authority. In the classroom, you have all the knowledge and the students have relatively little. They are explicitly seeking you out for your authority. Even within most “teaching departments” you are the sole expert in not just a narrow area but in several subfields, are you not? And...c’mon, ‘fess up. It goes to your head after awhile doesn't it? ...I think this is one of the reasons that extreme deference in my students drives me absolutely insane. I hope that at some level, I want to be challenged.
Is it any wonder you develop into a know-it-all who cannot conceptualize anyone else having valid opinions or rationales? Any wonder you start to broaden the scope of your claimed authority? After all, nobody challenges you in your day to day life. And for the most part, you are right. But not all the time, my friend, not all the time.
Having authority should mean recognizing challenges as challenges (in the best sense of the word) , not threats.