I've heard that most of the wealthy people today didn't came from inheritance and are from first generation of their wealth. To be successful is to think differently and discovering things that others don't see. That's these people have in common and they believe in themselves, in the vision that they project to their minds. And I think that most of the Bitcoin holders share the same view of believing into it and we're sharing the same vision on this in the long term and that's why most of us are going to be successful holders in the right time.
The world is changing and the pattern of wealth distribution is changing rapidly but I can still tell you that the inheritance money are far more than people that are fast rising into wealth. Check th Forbes list and the people that are toping the list, it's the same old wealth that is been built on because they don't want to go down on history as someone that has before and never had again, they are following the new pattern even though it's not fast like the new system.
Another that contribute to old money ruling is politics and favoritism. For example, look at where Elon Musk is working now, people believe he makes more money In tesla than he is going to do in Politics, on the paper that's true because he is only entitled to salary if he wish to take but he is there to make his business grow more bigger and monopolize it even further. Most of the wealthy top individuals are still relevant because of monopoly, that's the main system here in whole of Africa.