> Therefore, to pay that interest, they'd either have to borrow even more, or sell some equity to pay Or take a minimal salary or use equity sold at the low lo

> Therefore, to pay that interest, they'd either have to borrow even more, or sell some equity to pay Or take a minimal salary or use equity sold at the low long term capital gains tax rate to pay for it. Also consider that when you have huge amounts of assets - far greater than the loan principal itself - you can negotiate an interest rate that regular people can't. Borrowing 20M for living expenses against assets worth 200M is a very low loan to collateral value ratio.