"It’s fairly intuitive
that lending money to rich people would be a better business than lending money
to poor people.1 They have more
money, for one thing, which makes it more likely that they’ll be able to pay
you back. Their collateral tends to be better too. Administrative costs are
lower – your loans are in round lots and so forth. Also they’re more likely to
want to hire someone to, like, manage their kids’ trust funds, and if they like
the borrowing experience you provide maybe they’ll look into your trust-fund
management services. Cross-selling, it’s a thing."