What are the names of the robber barons was the main goal?

The term "robber barons" refers to a group of wealthy and powerful industrialists in the late 19th century, including figures like John D. Rockefeller (oil), Andrew Carnegie (steel), J.P. Morgan (finance), and Cornelius Vanderbilt (railroads). Their main goal was to amass wealth and control over their respective industries, often through monopolistic practices and ruthless competition. While they contributed to economic growth and infrastructure development, they also faced criticism for their exploitative labor practices and influence over politics.