Art serves social purposes...

"Moreover, art historians have developed much more penetrating explanations for the making of art. At the root of many of these explanations is the realization that the making of art is a social, not a purely personal, activity. Art serves social purposes, though it is manipulated by individual people in social contexts to achieve certain ends. Art cannot be understood outside its social context."

Lewis- Williams, D. (2002). The Mind in the Cave. New York, NY: Thames and Hudson. p.44