Retiring into anonymity is one option, and tempting. I still have a need to achieve something greater and will require more money. I spent ten minutes talking to one of our City Assemblymen and he talked me out of being an Assemblyman. It costs about $10,000 to run, is unpaid, and requires 12-20 hours of work a week, which is why most of them are retired. Perhaps in the future I could be state representative. That's a $50,000 outlay for a huge risk of not succeeding.
Having a lot of money means the best jobs are open to you, as are jobs that are fun and worthwhile but don't pay well.
Also, you can't deny the fun of getting all bling blinged out for a night on the town. It's not in my budget now, but when my investments are returning more than I could ever make working, my suits will go from Sears to Brook Brothers and I'll have a Rolex Yachtmaster instead of a naked wrist.
You can have a lot of fun with little money, but you can have a lot more fun and prestige while securing your own legacy with a lot of money.