Perhaps, if mankind survives, this will be used as a teaching point to future generations on how wealth is mostly fantasy. Some people play Magic the Gathering. Others play the stock market.
And it isn't. It's all imaginary. He doesn't have 4 billion apples compared to my 1 apple.
> it's a failure of humanity
People need to stop letting emotions override their critical thinking.
It's a failure of critical thinking, not humanity (unless you judge humanity on its ability to think critically, in which case it's you and not Elon Musk that is leading towards the failure of humanity).