Let's take an intimate look at the characterization of Tom Buchanano: a vile, powerful, wealthy, hypocritical, and racist character by picking at the words that Fitzgerald uses to describe such a man who existed in numerous manifgestiations in the eugenics of the 1920s and 1930s, leading up to World War II and The Holocaust. 

Eugenics: "the study of how to arrange reproduction within a human population to increase the occurrence of heritable characteristics regarded as desirable. Developed largely by Sir Francis Galton as a method of improving the human race, eugenics was increasingly discredited as unscientific and racially biased during the 20th century, especially after the adoption of its doctrines by the Nazis in order to justify their treatment of Jews, disabled people, and other minority groups."