The life altering qualities of vast fortunes should get its own graph. Up to a certain point, each new dollar added to the stack will alter the life of the owner -for the better (we presume).
Then theres a point where more money just means more people’s lives are altered… and not for the better.
I think by the time you get to the top slice of the one percent, more money added just makes everybody’s life worse… but Skynet becomes more palpably real.