Are you so sure that good art isn't destructive? It makes the rest of the world seem bland in comparison. When I started reading, at Eliezer's recommendation, the classic work of literature Fate/Stay Night, I found I had trouble reading other, lesser books, because, who cares?

An analogy might be to the Nymphs of Dungeons and Dragons - people who gazed upon their beauty would go blind or even die from despair that they would never see something so beautiful again.