Dunbar's number (http://en.wikipedia.org/wiki/Dunbar's_number http://en.wikipedia.org/wiki/Dunbar's_number). The average person can only maintain 150 relations

Dunbar's number (http://en.wikipedia.org/wiki/Dunbar's_number http://en.wikipedia.org/wiki/Dunbar's_number). The average person can only maintain 150 relationships; how is popular culture (which is composed of thousands or even millions of people) closer to nature than isolationism?