We can apply this to the present day too. Take a huge city like New York or Los Angeles or London or Tokyo. You think of investment bankers, celebrities and en

We can apply this to the present day too. Take a huge city like New York or Los Angeles or London or Tokyo. You think of investment bankers, celebrities and entertainment industry execs, or other hotshot professionals. But underneath all that glamor are the waiters, the cooks, the janitors, the security guards, the sanitation workers, etc. etc. who are often overlooked. But the city would utterly fall apart without them.