The first man who, having enclosed a land, thought of saying 'this is mine' and found people simple enough to believe him was the true founder of civil society. How many wars, crimes, murders; how much misery and horror the human race would hve been spared if someone had pulled up the stakes and filled the ditch and cried out to his fellow men: 'beware of listening to this imposter. You are lost if you forget that the fruits of the earth belong to everyone and the earth belongs to no one!'
Jean-Jacques Rousseau, A Discourse on Inequality, 1755
What is the relationship between common resources and property? I'd wager that most proprietry systems are build either using or on-top of commonly available code. Rarely is something so unique to be genuinely produced by the inventor. Rousseau is an idealist, a romantic; people forget outside the natural world is much worse. What animals do to each other in the natural world wouldn't be tollerated in civil society. If a squirel thinks he can get aways with it, he's pounce on an unsupecting pidgeon and have it for lunch.