What is the theme in Disorder and Early Sorrow by Thomas Mann?

Several prominent themes run though Mann's writing. One is the theme of the degeneration of society and its impact on the people in the society. From his first major work, Buddenbrooks (1901), to his last completed work, Felix Krull (1954), Mann lived in and wrote about a society that was undergoing major changes. At the beginning of the twentieth century, the effects of the Industrial Revolution were still being felt all across Europe. People were displaced because of the increasing centralization of industry. Workers were losing their individual identity as industrial centers grew larger and more impersonal. Small family businesses and occupations were lost. Human beings were being turned into parts of a greater machine.