no i think.
for what?? they are billionaire, too much money, so they never thing more about money.
someone who invest in bitcoin is they that want to earn more money
There are some billionaire that already invest in bitcoin, people are lough at them when they choose bitcoin as investment, but now their wealth is growing a lot, even one of them has invest more than 5% of their wealth in crypto currency, it's mean that bitcoin is very valuable and has good future.