The reason he is on Mt. Rushmore is because he played a very important role in the evolution of the U.S.A.
Answer: 2nd Industrial Revolution changed the way people worked and lived.
Explanation: As industrialization became stronger, and mass production was more common, a new social class emerged: middle class, who was employed by the factories, and was able to acquire many items that they produced in them. Their wages were high enought for them to buy more goods, whiche led to consumerism as a way of life for the working people
