Yes, but what is the calculus of 1 copy of book divided amongst number of copies/usages of LLM which reference said material?
That's the innate disparity and unfairness here --- time was when one made a design which was physically instantiated and replicated, the copies would wear out and one would then earn money again on replacement copies --- this is just another example of the commons and other resources being grabbed by profiteers who use them to make money as opposed for public benefit.