Gatsby's pursuit of wealth becomes so intense that it even takes priority over his yearning for love. Money and immediate pleasures become more important than being with Daisy. Gatsby's dream is doomed to failure in that he has lost the fundamental necessities to experience love, such as honesty and moral integrity. True, binding relationships amongst individuals no longer exist once wealth has taken precedence. Family relationships exist superficially amongst high-ranking members of society.
Marriages become simply labels of society rather than bindings between two individuals.
Gatsby accepts the fact that marriages rarely represent true love, and does not hesitate to tell his love to Daisy right in front of her husband. More than the institution of marriage, Gatsby loses all sense of family. His wealth has metaphorically become his family. He relies on his money rather than a family to bring comfort and security to his life. Gatsby makes an attempt to regain the loss of family he experiences through his wealth.