Social commentary: Minus the commenting?

"You don't understand: Willy was a salesman.  And for a salesman, there is no rock bottom to the life.  He don't put a bolt to a nut, he don't tell you the law or give you medicine.  He's a man way out there in the blue, riding on a smile and a shoeshine.  And when they start not smiling back- that's an earthquake.  And then you get yourself of spots on your hat, and you're finished.  Nobody dast blame this man.  A salesman is got to dream, boy.  It comes with the territory" (pg 1629).

This story comments on societal trends and beliefs in a variety of ways, but one way is very easy to notice.  Unfortunately, I am very poor at thinking of the correct terminology so the best way to describe it that I can think of is prejudice.  Everyone wanted to work their way up from being a salesman, even salesmen.  I guess this could be compared to a server today?  No body really wants to be one their entire life, but many can become trapped into being one for eternity life.  The play does not stop here though, it, much like Tom in The Glass Menagerie, has Biff who longs for adventure in his life and is not willing to be trapped into he pressures of modern society.  Willy's conflict is predominantly of the internal variety; however, the lack of respect that people had for him because of his work also contributed to his death.  I don't really know if Willy believed he was well liked or if people just put on a show for him, but both of these can be considered social commentaries.  Overall, it would appear that Miller wanted the reader to feel sympathetic towards Willy and then relay the emotions to the real world where they have other people that they belittle like people did to Willy.