It must be terrible to be so rich and so famous . . . and so insecure.
You described many performers/entertainers in a nutshell. Friends of mine in performing arts who were the most ambitious were also the most insecure.
Not saying that this holds 100%, but it seems the insecurity drove them to perform in front of a crowd to receive affirmation.
What I can do without is the -- too often -- dripping condescension.