If he really didn't care what people thought, he wouldn't have told anecdotes and written books telling people how he didn't care what people thought about him.

If he really didn't care what people thought, he wouldn't have told anecdotes and written books telling people how he didn't care what people thought about him. He wanted other people to think that he didn't care what other people thought. In general, caring about what other people think is a good thing. The alternative is to be a sociopath.