Why would shareholders want to tank the value of their shares?
If the wealthy wanted to buy something up on the cheap that they didn't own, they'd do residential real estate: something that's majority middle class owned (a fun corollary: property taxes are just wealth taxes on the middle class, the proportion of business capital the middle class owns is teeny). However, house prices have gone in the opposite direction as you'd expect from this theory!
You're comparing apples to oranges.
Net worth is in dollars, while economic output is dollars per unit of time. The comparison does not make sense.
You didn't even say which unit of time! Hell, I have a higher net worth than the total economic output of the US, given a short enough time frame.
It's not pedantry though. It really makes no sense to compare earnings per unit of time to accumulated wealth. They are entirely different things.
Compare the wealth of Elon vs wealth of average person on the Earth, or average US citizen. Those are also mind-boggling numbers and it makes sense to compare them.
Investors do hold some cash, but they generally prefer not to hold a lot of it because inflation reduces its value. $44B sounds like a lot of money, and it is, but it’s only around 8% of the $632B of assets they hold. (Not sure where you got your much bigger figure; mine is from their consolidated balance sheet reported in their 10-K report for Dec 31, 2024.)
But as many responses to your comments; there’s a portion of the population who are not invested in the markets this way.
There’s clearly a very different perspective for some, and as per my original reply; it seems many more are worried (rightfully so) about assets others cannot even begin to comprehend - let alone invest day to day, or “spare”, money into.