The fact that political ideologies are tangible realities is not a proof of their vitally necessary character. The bubonic plague was an extraordinarily powerful social reality but no one would have regarded it as vitally necessary.
In every work of art the subject is primordial whether the artist knows it or not. The measure of the formal qualities is only a sign of the measure of the artist's obsession with his subject the form is always in proportion to the obsession.
