This painting is known as the Pyramid Of Capitalism, and it was made to show the evils of capitalism. They show the disparity that the economy breeds and how the lower classes often have to do the hard work for the upper classes. The pyramid is reminiscent of feudalism in Europe, with the top benefiting from the people below, creating a system of the rich becoming richer. It was made for industrial workers and reminding the upper classes that America runs off the working class, and if they ever stopped working, the whole system would topple onto itself. It would later be used by the Soviets as a criticism against Capitalism.
Although I do not agree with the later uses of the painting, I do think that the painting itself brings up a great point about Capitalism. This point being that the upper class relies on the lower classes. Birth and status have a big factor in where you start in America, but what I think the painting fails to mention is the class mobility that does happen in America. Even though the class mobility in America is on the rarer side, it is not completely uncommon and with the right amount of work, and luck, people can climb on the classes to be on the top.