No, you are mixing up control with possession. Control can be direct or indirect. Possession is what gives you direct control, whilst ownership gives you indirect control. (You can have both possession and ownership, but I'm presenting them as mutually exclusive, to keep the argument clear.)

The weaker your ability to legally-enforce ownership, the more direct your control has to be, which means you have to take physical possession of everything you want to control. Which sounds great, but makes advanced economic activity difficult and ultimately makes it simpler to depossess you (intentionally or unintentionally), by concentrating the points of failure.