Culture vultures want to make sure everyone sees that they are on the posh half of that divide. For example, they may have no actual interest in the opera or the ballet, but they dutifully attend performances, simply because they feel that their aspiration to a high social position requires it. They may be members of a museum or concert hall. They show up at art galleries, not so much to view the paintings as to be viewed by their neighbors. It's a moot point, for their motivation in attending has nothing to do with aesthetics and everything to do with status seeking.
Most human beings have some artistic interests.
Someone may be a passionate admirer of Baroque music, someone else an aficionado of Monet's paintings, another person a fan of classical jazz, or devoted to Shaw's plays, or crazy about Hemingway's stories. In fact, it's usual for people to have a range of aesthetic hankerings that we indulge piecemeal, as the occasion allows. But a culture vulture has no overriding aesthetic interests at all. Thus, for the culture vulture, attending a symphony at Lincoln Center is really analogous to wearing an Armani suit, or sporting a Gucci handbag, or ostentatiously using an expensive laptop in public. The problem is acute in New York, where social and class distinctions are savagely exacerbated by a multi-ethnic population, and by intense competition among ambitious newcomers for membership in the New York elite.