It's high time for the art world to admit that the avant-garde is dead. It was killed by my hero Andy Warhol who incorporated into his art all the gaudy commercial imagery of capitalism (like Campbell's soup cans) that most artists had stubbornly scorned.
Madonna remains the most visible performer on the planet as well as one of the wealthiest but would anyone seriously say that artistic self-development is her primary motivating principle? She is too busy with Kabbalah fashion merchandising adoption melodramas the gym and ill-starred horseback riding to study art.
One of the main reasons I am so drawn to Hitchcock is that he planned his shots way in advance on story-boards which he designed like classic paintings (he was an art connoisseur). It's why he found shooting on set boring - because he had already composed the film in his head.
Because most of my career in the classroom has been at art schools (beginning at Bennington in the 1970s) I am hyper-aware of the often grotesque disconnect between commentary on the arts and the actual practice or production of the arts.