When we see Capitalism in America, we often don't look past what's on the surface. If I ask you to look at a car and tell me how the economy is helped by its production you may mention the men on the assembly line, the man who drew up the blue prints, and the modern technology that helped make it quicker than it could have been made in the 1950's.
But how about other jobs, that the car was able to bring about? The farmer who was able to sell his animals for leather to make the seats. Once the leather was sold, it had to get to the car manufacture by truck drivers. The truck drivers in turn, have to purchase gasoline to travel.
That is just one part of the car; the radio in the car also uses parts that travel via truck. Also the glass made for the car has to come from somewhere as well.
So Capitalism as you can see, performs everyday miracles that we seldom realize.