What were the Middle Class values that emerged in the Gilded Age?

In American history, the Gilded Age is referred to as the period of rapid economic growth that lasted from 1870 to 1900. It was the period in which the wages of American laborers, and skilled workers increased significantly. During the Gilded Age, the U.S. witnessed the migration of millions from Europe. The rapid growth was the result of expanding industrialization. The Gilded Age is marked by extravagant consumerism & extremist political misconduct.