I think the biggest upset that billionaires cannot do is the most important thing money should buy. Billionaires cannot afford his own biological children without risking his whole wealth. In particular, billionaires cannot simply afford many (say, 20) biological children.
Okay some comparison.
There are 2 types of billionaires. Females and Males. Obviously female billionares cannot have 20 biological children, nor can they do so on 1900. So let’s ignore the trivial case.
In 1900 China (not sure about europe), it’s simple. Have tons of concubines. Have tons of children. Period. It is easily done. Many are actually doing it.
Now this is that bothers me. Every father has an implicit contract to support his child within his mean.
That means, no matter how rich you are you will never be able to afford 100 kids. That’s because your obligation will simply be proportional to your income.
So a man is not free to father 100 kids? Think about it. You’re free to do many things under so called free country. What about if your happiness come from fathering children and say you want to do it normally rather than using artificial insemination. You can’t.