Actually basic economics says, all economic transactions in an economy are designed to benefit a private property owner. *All*.
The end beneficiary in an economy, the place where money stops is a private property owner. Every economic activity no matter what that is, just acts a long chain in which the eventual beneficiary is a property owner.
That's just how it is, there's really nothing that can be done about this.
If you live next to an empty lot, and the local government allows an apartment complex to be built on it, your house just dropped tremendously in value, both due to loss of privacy and the large boost in supply of housing, which was previously lower and inflating the price of your home.
I don't think they were saying it benefits every private property owner. It's clear that there is at least one private party that benefits from the ownership of that apartment building.
The end beneficiary in an economy, the place where money stops is a private property owner. Every economic activity no matter what that is, just acts a long chain in which the eventual beneficiary is a property owner.
That's just how it is, there's really nothing that can be done about this.