In the great Gatsby, F scott fitzgerald...

Answer:
Delivers harsh criticism regarding materialism in America.
Explanation:
Although The Great Gatsby has many underlying themes in the novel, one of its main focuses, which Fitzgerald intended himself, was to critique the rich and their lifestyle.
Fitzgerald wrote this in 1920s, when people were becoming wealthier because of economic growth after the war (although The Great Depression was looming in the corner). This period is also the setting of The Great Gatsby.
He depicts the difference between the wealthy through his classification of old vs. new money; and how the former has completely lost its humanity in exchange for their social status, the latter does not, although it strives to do so in order to be considered part of the 'elites'.