Well... I cannot say that I'm agree with you. Paintings and photography are quite different disciplines IMHO. I never like to consider my photos as an artwork. Photography is more like craftmenship to me.
Heavy noise may give some nice effect to a portrait shot or an action shot but noisy dragonfly photos even the most detailed one is something like a good wooden table with lack of fine finishing or with a bad varnish.
And there had been times that when I looked at a painting, like the light and composition but did not like the technique. It's getting more and more often at the former times hence many painters, illustrators are coping their designs from photos which has already good light and composition.
Those are my two cents.