alt Hacker NewsIf your product has no value without access by your company/you agents of someone elses work, you are a derivative work. The value of your product has at least in part been derived from other's copyrighted work.
The fact that these companies don't just remove copyrighted work from their product creation chain shows that they feel they are deriving value from the copyrighted works that they wouldn't have if they didn't use copyrighted works.
"Deriving value" from what came before doesn't mean that what came before is owed some sort of check. And thank god, or the world would be a horrible place full of rent seekers.