Final answer:
The description of Myrtle's death in 'The Great Gatsby' emphasizes the destructive influence of the wealthy and the moral decay of the 1920s, underscoring class disparities.
Step-by-step explanation:
The description of Myrtle's dead body is critically important to The Great Gatsby as it serves to highlight the careless brutality and the destructive power of the wealthy elite, epitomized by characters like Tom and Daisy Buchanan. This vivid imagery of Myrtle's death is not about love or marriage per se but rather underscores the idea that the affluent characters in the novel cause havoc in the lives of those less privileged, leaving behind a trail of chaos without facing any consequences. Through the portrayal of Myrtle's death, Fitzgerald conveys a broader commentary on the social and moral decay of the era, as well as the class disparities of the 1920s America.