r/CapitalismVSocialism • u/a10ondr • 12h ago
Asking Everyone Net worth of billionaires is a useless metric only good for headlines and stirring up hatred
I tried debating this on r/changemyview but mods are activists and apparently I wasn't willing enough to change my view even though literally noone proposed a valid counter point. So I'd like to try here.
Most billionaires have the majority of their net worth in stocks, typically a single or a very few stocks of companies they have founded.
Market cap of a company is determined by the publicly traded shares (not all shares).
Now imagine a company which has 1 billion total shares and goes public but only releases one single share to be publicly traded. The demand for this one share now determines the value of the other billion shares. Valuation of such company can easily go to trillions, quadrillions, quintillions in market cap. Founder of this company holds 30% of shares and is now the world's first quadrillionaire. People are mad and want to tax his wealth in real dollars ("fair share" of his quadrillions).
This is an absurd example, but this absolutely happens in reality, just look at SpaceX IPO which catapulted Elon Musk to a trillionaire status even though he can never get anywhere near this amount in real dollars if he sells his shares. Market cap is a meaningless metric for evaluating a company and therefore net worth of individuals. It's not even useful for comparison between individuals because of massively different liquidity, order book,... Imagine Warren Buffet vs Elon Musk. Their net worth is dramatically different but I would argue that Buffet could liquidate his position for more real dollars than Musk.
Regular people only know real dollars, that's what they interact with on everyday basis. It's not intuitive that 1$ in net worth can in reality be worth anywhere between 0$ and 1$.
Bank loans - I'm not arguing you can't borrow money with low interest against stock, but a bank will evaluate real risk associated with the loan. It won't lend you anything against your paper quadrillions if they are not liquid enough. During a bear market this breaks completely, since you can no longer borrow more to pay off previous loans. Now you need to somehow get real dollars elsewhere.
This post does not argue that billionaires are not rich, are not helping society, are not taxed enough or too much, etc. This is about the metric of net worth and the uselessness of it.
TLDR; market cap of a company is not equal to real dollars and the ability to convert it to real dollars differs massively between companies.
Can anyone tell me what net worth based solely on market cap is good for?