“Art is like masturbation. It is selfish and introverted and done for you and you alone. Design is like sex. There is someone else involved, their needs are just as important as your own, and if everything goes right, both parties are happy in the end.”
Perhaps the difference is that a presenter has a vested interest in the audience getting the ‘point’ of their work, whereas the artist… not so much. I dunno. It’s all in the eye, or the mind, of the beholder, I guess.