Short Answer 
The differences between East Egg and West Egg residents highlight societal class distinctions, where East Egg symbolizes old money with a deceptive facade and a focus on inherited wealth, while West Egg represents new money characterized by ostentation and less refinement. This division illustrates themes of social hierarchy, authenticity, and the varied attitudes towards wealth and acceptance.
Step 1: Understand the Societal Levels
In the narrative, society is divided into distinct levels, represented by East Egg and West Egg. These locations symbolize the class differences stemming from old money and new money. Understanding these divisions is crucial, as they define the characters’ behaviors and social interactions.
Step 2: Analyze East Egg’s Characteristics
East Egg is home to the wealthy and fashionable individuals who often hide their underlying unattractive traits beneath an appealing facade. This deceptive appearance is indicative of the old money mentality, suggesting that their status is inherited rather than earned, which influences how they relate to others within their class.
Step 3: Recognize the Contrast with West Egg
In contrast, West Egg residents represent the new money; they are often depicted as less refined and more ostentatious in their displays of wealth. The difference between these societies illustrates not just economic status but also attitudes towards wealth and social acceptance. The nuances of this contrast reflect deeper societal themes, such as authenticity and social hierarchy.