The point isn't to spend it, the point is to make so much money that investments self replicate. At that point, they can stop worrying about money forever and just live off the interest.

Then, you have trust funds for your children so that none of them ever have to work. And when you die, your children will inherit the fortune, so they can do the same for their children, ad infinitum. And if they want a "job" you can start a nonprofit that they can run, so they can be known as successful administrators while you are recognized as a selfless philanthropist who gave away so much money.

I guess it would be hard on their families because they would move off the fast track of multi-generational absolute financial security.