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.
In all of our society but especially in Hollywood there is an obsession with perfection that can lead to self-loathing and neurosis and all that kind of stuff.