Arne Glimcher — American Director born on March 12, 1938,

Arnold "Arne" Glimcher is an American art dealer, film producer and director. He is the founder of The Pace Gallery. Glimcher has also produced and directed several films, including The Mambo Kings and Just Cause... (wikipedia)

There is more to representing art than selling art. The life of the gallery is dependent on the renewal and refreshment of its artists and dealers. When that stops happening, it's the end.
The conceptual artist Ai WeiWei illustrates the schizoid society that rapid change has produced - sometimes by reassembling Ming-style furniture into absurd and useless arrangements, or by carefully painting and antiquing a Coca-Cola logo on an ancient Chinese pot.
If Abstract Expression reached for the sublime, Pop turned ordinary imagery into icons. Roy Lichtenstein and Andy Warhol illuminated the transformative power of context and the process of reproduction. Claes Oldenburg's soft ice-cream cones and hamburgers changed sculpture from hard to soft, from stasis to transformation.
Art is a tool by which society extends its perception.
Historically, art has always had a market. When one medieval fiefdom defeated another they would drag back its jewels, gold, tapestries and art objects as the spoils of war. Art equaled power, riches and culture.