Perhaps it is easier to explore the limits of individual ownership when they are taken to the extreme, rather than to a minimum asshole status example.

Consider that an entrepreneur could obtain ownership of an entire nation purely through voluntary contracts that mutually benefited the parties involved. This differs from a despot only in justification of ownership being based in rights rhetoric rather than the divine. If the new king decides to shutdown all of the factories and farms so he can have more hunting land, what are the counterparties supposed to do? Lay down their plows and quietly consent to death?

At the point where individual ownership creates a power structure over other citizens' ability to use their labor to reproduce society's needs, that ownership has obligations of higher moral standing than the individual owner's whims. I tend to think preventing people from working to help themselves is even more abhorrent than merely hording resources, so better highlights the limits of ownership. Which power structures we consent to in our economic ecosystem and which individuals we offer to run them should always be up for renegotiation.