The truth is, I gave party C money for a product. Party B does not get to say anything about what party C gave me. And they absolutely do owe me something, and that is the use of the product they gave me for my money. Whatever their terms of service say about licensing versus owning should not trump the fact that I made a one-time purchase and I have physical ownership that they cannot revoke. This is not a car lease where I have a contract with the dealership and they can reposses the car if I don't make the payments.