Art and poetry always express tension, which awakes. Both of them, though, were expressionists and not Social Realists, otherwise they wouldn't remain in anybody's memory. Mayakovsky's muse glided on the heights of eternal protest, while Ferdinand Leger in his industrial and geometrical universe prefigured the future world of high technology. Contrary to art to order, which serves, commercial art tries to guess what the customer may desire, while ideological art tries to impose on people what they should wish and how they should think. Both, then, are looking for a recipe which they will not find because there is not and there never will be art from a recipe.
Commercial art is a lesser art, halfway between art and craft.
Therefore good commercial art must be technically irreproachable, a requirement that doesn't apply too strongly to art. Of course religion can become political, so the art expressing it becomes commercial. Eroticism can be commercial, so the art expressing it becomes pornography. Even rebellion can become a caricature of itself with kitschy art as its expression. I was talking about authentic religion, rebellion, eroticism, in contrast to politics or any other profit oriented policy or philosophy like marketing, trading, etc.