Fitzgerald paints a critical view of society in "The Diamond as Big as the Ritz." In this story, America is a place where the blind pursuit of wealth has replaced religion. Americans deify the rich and worship at the altar of money. It is a bleak landscape, where success and its pursuit have replaced morality. Fitzgerald creates an allegory for the expansion of America, particularly into the West, and argues that such expansion was at the cost of human values and human life. He critiques America's history of slavery as well, and doesn't shy away from implicating the founding fathers (like George Washington) as sharing in the blame.
The history of the Washington family is an allegory for the expansion and growth of the United States.
"The Diamond as Big as the Ritz" satirizes immigration laws.