Having $270 billion dollars and spending the bulk of your time trying to make more money is like weighing 900 pounds and thinking "ooh, I bet I can get to 1000".
If we see a street lady collecting a hundred cats to horde, we call her crazy.
When we see someone hording so much wealth that they could never reasonably ever spend all that money in a lifetime ... we put them on the cover of a magazine.
In thousands of lifetimes. 1,000,000 per year is a stupid amount of money to live on. If you "only" spent $1,000,000 a year you could live on 250billion for 250,000 years. That isn't including any interest accrued.
People constantly underestimate how large a billion actually is.