Piracy isn't stealing; it's copyright infringement and often a contract violation. Using metaphors for complicated legal issues is not a good way to approach things.
Smart people keep having the same tired arguments for the nth time for the past 2500 years. That's just the result the result of those question being fundamental and difficult to answer objectively.
The piracy thing seems like a silly semantic issue on the face of it but the semantics strike at the heart of the issue.