My point is that if you buy a new record from an artist you generally expect it to be original music that’s the product of creativity. But a lot of artists release things that are perceived by many to be very derivative, unoriginal, and not creative.
No, you expect it to be one of hundreds to hundreds of thousands of exact copies that anyone else could buy regardless of whether you own a copy or not, and that will usually be repressed if the supply runs dry. It's the product of a record pressing/CD replication machine more than anything else; no creative or original work goes into producing copy 67,904 out of 100,000. There is no expectation that you are paying for original work. The money you spend might go into funding original work, indirectly, but what you're paying for is a copy, and that's also what you generally expect it to be.
If consumers generally each bought the only copy of the records they own, it might have been more relevant.