He says he has no real interests, but actually he's doing reasonably interesting things to make a living. In a way he's already doing what he wants for a living.

If he had a bajillion dollars, might he be doing other things? Sure. But that doesn't mean his only interest is money, it's uncertain whether he'd be doing a variation of the same things. Seems plausible he'd do a video about what it's like to be mega rich.

People who are only in it for money are often doing quite mundane things. Would I have stopped my paperroute if I had loads of money as a kid? Yes. Would I stop coding altogether? Probably not, I like it.