Value is just what people will pay for it. Which is apparently, in some cases, more than 430k: https://www.nytimes.com/2018/10/25/arts/design/ai-art-sold-c...
The notion of vulgarizing art is what people said about jazz when it pulled people away from the "fine art" of classical (the "swamp of jazz"). How wrong they were. I don't think people will see beautiful art, albeit generated by an AI, as "vulgar" in the future.