How can Marxist theory be applied to The Great Gatsby?

I think that Marxist theory can be applied quite easily to
Fitzgerald's work.  Marxist theory asserts that all art arises from its socio- economic
condition.  Fitzgerald would readily admit that, in that the work is a depiction of the
social and economic excesses of the 1920s.  Along these lines, Fitzgerald does
demonstrate some beliefs that are Marxist in nature.  The ownership of the means of
production consolidated in the hands of the wealthy and this representing a sense of
corruption is present in the novel.  The Buchanans and others like them that represent
the consolidation of wealth are those who abuse this condition is an idea that is
present.  The Buchanans and those like them act only for their own interest, and at the
cost of the Wilsons of the world.  At the same time, there is a commodity fetishism
where money and objects hold more importance than people do.  The search and coveting of
the "next party" or the "next piece of gossip" as well as Daisy's bizarre reaction to
the shirts in Chapter 5 are all representative of this.  Gatsby's belief that he can
spend money to "win" over Daisy is a capitalist idea that Marx would actually see as
endemic to the system.  The proliferation and possession of wealth causes individuals to
actually believe that they can "purchase" people for money.