In one word: populism. Wikipedia has a good definition: "an ideology which presents "the people" as a morally good force against "the elite", who are perceived

In one word: populism. Wikipedia has a good definition: "an ideology which presents "the people" as a morally good force against "the elite", who are perceived as corrupt and self-serving." So in Hollywood blockbusters those who listen to classical music are identified with the elite, which by the enjoyment of something "complicated" sets itself apart from the good common people who pay the ticket to see once again Good triumph over Evil.