Earlier quoted context omitted.
I think it's scarcity (or to be precise scarcity mentality, which would probably extend into post-scarcity). The very reason for trying to find profit in the first place, real estate crypto or whatever, arises from wanting to outcompete someone else for resources.
That is the definition of an economy.
The expectation that every individual is trying to swallow the economy whole is actually impossible and the only reason why any individual would even consider pursuing that path is because for some reason the marginal cost of effort to obtain more utility is zero. In other words there is infinite demand for freebies but not infinite demand for things that require effort.
There is no such thing as a cost of zero, someone else will have to pay for it. It turns out the government offers a lot of free services that scale up with how much property you own and other people without property have to pay taxes to pay for those services.