Edited my comment to remove that bit because it distracts from the point that he is working for reasons other than money. It’s not a 1:1 comparison, but it’s valid and useful to scale big numbers down to ones we’re more familiar with and can reason about intuitively.

How’s this for perspective. Simply sitting on his 2bil invested at a 6% return he’s getting 120mil/year. He does not need that money as a motivator.

$200k can't even buy an average american house. Also, I've seen commenters on HN and reddit arguing that a $10k/yea job isn't worth having because it's lower than your cost of living.