Weirdly Bezos would still be 2nd richest were it not for Bill Gates giving so much of his money away.
But yeah, at the end of the day it's mathematically impossible to properly "earn" even a single $1Bn. It can only physically possibly come through inheritance or exploitation of others, usually through wage or land exploitation.
In the months since the start of the pandemic, his wealth has increased from $113 Bn to $175Bn+. These people will exploit the necessities of catastrophes, take billions from tax payers in government subsidies, then charge tax payers again for the products, while dodging tax themselves, and then have the cheek to barely paying the actual wealth generators running the ins and outs of the company.
As MLK said, this system is "socialism for the rich, and rugged free market capitalism for the poor."