Because of the misery pervading her life, Myrtle has distanced herself from her moral obligations and has no difficulty cheating on her husband when it means that she gets to lead the lifestyle she wants, if only for a little while. What she doesn’t realize, however, is that Tom and his friends will never accept her into their circle. (Notice how Tom has a pattern of picking lower-class women to sleep with. For him, their powerlessness makes his own position that much more superior. In a strange way, being with women who aspire to his class makes him feel better about himself and allows him to perpetuate the illusion that he is a good and important man.) Myrtle is no more than a toy to Tom and to those he represents.
Fitzgerald has a keen eye and in The Great Gatsby presents a harsh picture of the world he sees around him. The 1920s marked a time of great post-war economic growth, and Fitzgerald captures the frenzy of the society well. Although, of course, Fitzgerald could have no way of foreseeing the stock market crash of 1929, the world he presents in The Great Gatsby seems clearly to be headed for disaster. They have assumed skewed worldviews, mistakenly believing their survival lies in stratification and reinforcing social boundaries. They erroneously place their faith in superficial external means (such as money and materialism), while neglecting to cultivate the compassion and sensitivity that, in fact, separate humans from the animals.
