The Great Gatsby: Moral Decline Through The Interpersonal Relationships Characters in books can reveal the author feeling toward the world. In The Great Gatsby Fitzgerald suggested the moral decline of the period in America history through the interpersonal relationships among his characters. The book indicates the worthlessness of materialism, the futile quest of Myrtle and Gatsby, and how America's moral values had diminished. Despite his newly acquired fortune, Gatsby's monitory means could not afford his only true wish, therefore he cannot buy everything which is important to Daisy. (Fitzgerald, -page 42)