re: "Solve the money problem once-and-for-all".
You will still need to prove yourself at a new company if you ever want to produce something again. Life is long; early retirement can be REALLY REALLY long. At some point, you have to do something that you will find meaningful, however rich you are. At that point, you'll have this 'prove yourself' thing coming right back at you.
It's easier if you have a track-record of success, but 'proving yourself' is something that everyone is doing, constantly, with their loved ones, their workmates, in a way, even their local barrista.
If you want to work with people, you will need to earn their respect, admiration and trust. Being rich eases that path (for some), but it doesn't take away that fundamental truth.