What's Fitzgerald trying to say????

Fitzgerald is trying to send a message to the readers about the effect off the 1920s on everyone. In chapter 9 Nick explains the American Dream was originally about discovery, individualism and the pursuit of happiness, this is how Fitzgerald saw it. In the 1920s it is shown though by the novel the corruption of the American Dream because of the easy money and social values that have changed, this is shown more in East Egg. The whole novel is Gatsby's dream of loving Daisy is not going to happen because of the differences in their social statuses, his way of getting money through crime to impress her and how Daisy likes the materialistic things in life that are integrated into her lifestyle. Fitzgerald also wants the reader to see how messed up the rich people, or upper class, through wealth, comparing the new millionaires of the 1920s and the old aristocracy rich families. Fitzgerald portrays the newly rich as being vulgar,flashy,and lacking the social grace and taste. While the old aristocracy are opposite of the newly rich people. Fitzgerald is trying to say that the the new rich people are different, socially and personally, compared to the old rich people. The new money show off their money, evident with Gatsby, while the old money are much more modest and not show it off as much or as extreme as the new money does.