> If you keep receiving all the income you want and I'll get exclusive rights to all of your wealth, surely you got the better side of this deal then?

I think so, because you can use the income on consumables. Like say you got a no-limit credit card. You go on exotic vacations at tropical resorts. All you have are some (economically worthless) photos of yourself having a great time. When the credit card company comes calling, you turn out your pockets and say "sorry, I'm broke", and walk away to your next plane flight. Definitely seems like a good deal to me, not so much for the credit card company.

The simple fact is that most people are wealth-neutral or even wealth-destroying in that e.g. they wreck their car and just buy another.