system
Given the following post, respond as if you're commenting on Reddit:
human
Do billionaires pay for everything by selling their stocks?

I know some billionaires get paid $1 salary like the former Steve Jobs and mark zuckerberg. Their wealth comes from the amount of stocks that they own in the company. So if they were to buy things by selling their stocks, wouldn’t that drain their ownership in the company? If someone is worth, say 1.5 billion and they buy a 150 million dollar yacht and mansion, wouldn’t that drain 10% off their ownership of the company?
gpt
I work for JPM and one of our best products is a line of credit based securitized by their investments (SBL). The lines are pegged to LIBOR so the interest rates are really low. So if their money is earning 8% and they’re paying 3% to borrow against it, they’re still up 5% without ever selling to use their money. It’s almost not fair. 

EDIT: Elon has been known to live off his massive LOC.