This is nothing really new, people complain all the time about those that are rich but many of them got in that position by being smarter, at least in economic terms than the majority, they can see that there has been a massive creation of money by governments all around the world, and they know this is going to create inflation and they are trying to look for assets that protects them from that inflation and bitcoin is a very good solution for that, I'm pretty sure that they do not want the economy to crash because they are doing great now but in the case it happens they can still retain a great deal of their wealth and maybe even increase it in the process.