It’s a contribution thing. He contributed enough to society to deserve to not worry about money for the rest of his life. It’s rare though since we have a bunch of billionaires who skim the rewards from huge swaths of the population who also have contributed their part.
The financialization of retirement is a huge part of the problem for the middle class (or what’s left of it, upper-lower-class is probably more accurate). We have to invest in these assholes in order to save for retirement. The harder workers in services, laborers, and fields don’t even get that.