Because he lives in his own little bubble.
His own little bubble where everyone wants to hear what he's thinking all the time. Where everything requires a loud voice and talking over other people, where the fact that everyone has paid £700 for the course doesn't seem to register.

He's a stupid, egotistical, childish dick-head, and he fails at life.
( The Baroness The Harlot Pimpernel, Thu 22 Oct 2009, 15:15, archived)