If you are have net worth of a billion dollars, there is literally nothing you can’t buy, with one exception:
Love. Sorry to sound so trite, but it is nearly impossible to have a normal emotional relationship at this level. It is hard to sacrifice for another person when you are never asked to sacrifice ANYTHING. Money can solve all problems for someone, so you offer it, because there is so much else to do. Your time is SOOOO valuable that you ration it. And that makes you lose connections with people.