Having that much wealth and power concentrated in the hands of such a few is a societal sickness.
They're effectively stealing a disproportionate amount of our world's resources for their own pleasure, at the expense of everyone else.
Not really. Think about this way. One share of Amazon costs $3,292.23. If someone gathers $3,300 and offers to buy that share at that price, Jeff Bezos's wealth just went up $424,000,000. But it's not like he took $424MM from anyone. And he wouldn't actually be able to get that $424MM, because if he started selling his shares, there would need to be enough people with $424MM more than they had before that want to buy it.
At that level of wealth, most of the money doesn't actually exist. It just represents control. It's basically created from nothing.
I agree, and that's part of the problem as well.
But also, to use your example of Bezos, he cashes out a few billion dollars of shares per year for his own personal gain. All while Amazon's workers (whose hard work enabled him to do this) are being treated so badly.