So, if the government and the police force wasn't there, how would you define what your property is?
Our abilities are not vastly different from one another. No one is fundamentally better than anyone else on that level. It's pure fiction. Being "rich" is an illusion propagated by oligarchs who want to retain their own power. Strip everything away and put any two people in 130,000 BC and you'll find that we're all basically the same.