Funny how the word license never comes up until you read the fine print. Colloquially you're buying the product. If we're going by legal technicalities then legally I ain't stealing shit.
Services like massages are paying directly for someone's active labor, buying a book, a song, or an (offline) game is one a time transaction for an already completed work
What you're paying for when there's a license or other kind of agreement is more akin to a service. Like permission to use it, renting it. Paying for labor is just renting someone's body and skills. The seller making the offer gets to determine the terms, and then you have just as much power to walk away.