This argument has been had a thousand times before, and it would be a waste of time to relitigate it. Suffice it to say that "intrinsic value" is subjective, artists absolutely contribute to the productivity of any society made up mostly of human beings (the subgroup of artisans being strictly necessary for tool-making, if nothing else), and even if they didn't, a "dumb load" is objectively more constructive than the net destructive activity of many whose primary activities have so-called "intrinsic value".

But I'm not here to argue the points I've raised, only to state them, and that the debate you're trying to start is old and counterproductive and not something someone with any amount of introspective ability should want to continue further.