You absolutely can alter the concept of property ownership; to think otherwise is a failure of imagination, historical perspective, or both. (For instance: who owned the land under the buildings at 8th and Market three million years ago? What would an early Christian think of our complex system of interest-bearing loans? Have you ever read any sci-fi novels depicting societies in which property rights took fundamentally different forms? Should landlords be allowed to kill or enslave tenants if that would increase their profits? What if the government knocks on your door and claims eminent domain? And so on.)

Whether you should do so is another question, one to which I don't have the answer.