Yep, I agree of course. If you're not "participating in the economy" then you can't be rich, and hoarding wealth usually makes it worthless. That's why Atlas Shrugged was nonsense.

But you can sort of do it short term - retired people and the idle rich do exist - and a lot of people assume you can, like saying a billionaire actually has a billion USD they could give out, or thinking their employer's going to replace them with an AI.