Discussion of modern art would seem to to be outside the purpose of this thread. Trying to fit people who reshaped concepts in their field into comparisons at this level doesn't work. Warhol and Pollock don't belong here.

Warhol's work mirrors the present commercial age; he created a new way of regarding our culture through art; his importance is evident in the increasing regard his works are held throughout the world.
His "Green Car Crash" sold for $71 million recently to an important Russian collector, and other works are bringing ever rising prices as museums and art collectors vie to obtain his works for important collections.

Jackson Pollock (note spelling) did his best work in a rather short period, alcoholism took over in later life. His better works bring ever-increasing prices, though it is doubtful the the price of $140 million, paid by a German collector for one of his works, will be exceeded.