Final answer:
Nick suggests Gatsby maintained his decency at the end, and through this, Fitzgerald illustrates the multifaceted nature of both Gatsby's character and the 1920s, showcasing the individuality and universality in Gatsby's story.
Step-by-step explanation:
When Nick says that Gatsby "turned out alright at the end," it can be interpreted that, despite Gatsby's illicit activities and the disillusionment prevalent in the era, he maintained an innate decency or hope. F. Scott Fitzgerald, through Gatsby's characterization, demonstrates both the individual struggles and the broader societal issues of the 1920s—making Gatsby's personal story both unique and reflective of the time.
Gatsby is not merely a representation of industrial barons, brewers, or bootleggers but a complex character shaped by the extravagance and the corruption of the Jazz Age. Fitzgerald's portrayal of Gatsby is funneled through the lens of a flawed narrator, Nick, who acknowledges the ambiguity of Gatsby's character, allowing readers to interpret Gatsby’s outcome with a mixture of admiration and critique.