He was handed over 400 million dollars sometime in the late 1970s--in today's economy, that would be roughly 1.6 billion dollars. He is estimated to be "worth" far less than that sum. That takes a staggering level of idiocy and incompetence.
As far as being a "celebrity", which for him is being on tv? I think I could get on tv pretty easily if someone handed e a billion dollars. I've been on tv, in fact, and I come from poverty--though not the sort of tv that reaches a wide audience, and not that I would care anyway. If I were handed even a fraction of that sum, I could easily reach a huge audience if that were my aim.