What inferences can be made about the differences between the “old money” of East Egg and the “new money” of West Egg based on the two settings?

Even though there is a “sinister contrast” between East Egg and West Egg, everyone gets along.

The contemporary, fashionable residences of the West Egg reflect their owners’ acceptance into all levels of society.

The wealthy and fashionable East Egg residents hide their unattractive qualities underneath light, dreamy appearances.

West Egg people are more sophisticated than East Egg people because those from West Egg earned their money more recently.