In The Great Gatsby, wealth can be distinguished from class; it is possible to achieve great wealth without being accepted into the elite class, as evidenced by Jay Gatsby’s experience. Poverty, on the other hand, restricts decision and action. George Wilson, for example, is unable to "go West" with his wife because he hasn’t enough money. It is money that allows Tom and Daisy to go here and there, leaving other people to clean up their messes. The life of ease and luxury that Tom and others enjoy is contrasted sharply with the stranglehold of poverty containing Myrtle and George Wilson or the life from which Jay Gatsby emerges. Wealth is what separates Gatsby from his love, as he notes of Daisy that "her voice is full of money."
Although Fitzgerald presents wealthy society as careless and selfish, ultimately all of the characters in the book, regardless of wealth or poverty, fail to demonstrate loyalty and friendship. These failures are the common denominators between the classes. In The Great Gatsby, materialism may appear to be beneficial, but it is an impediment to the achievement of lifelong desires.
A Marxist interpretation of The Great Gatsby demonstrates the emptiness and moral vacuum created by the decadence and wealth of capitalism.