Honestly, 100 mil or even 50 mil is more than enough for any human to live a carefree life, without the need to work ever again and without any material want or need. But we would be fine without a wealth cap too, if we got rid of the concept of inheritance. Make as much money as you can or want, but *actually* pull yourself up by your bootstraps and when you die it all gets returned to the people (and not your nepo babies).