I'm not sure who Jon Stewart is, or who exactly he's representing, or if he is just pointing out that hypocrisy is alive and well, but this story is not new - it's old - very, very old.
I've been reading " Animal, Vegetable, Junk, a History of Food, from
Sustainable to Suicidal" by Mark Bittman and it talks a lot about who does the work vs who takes the risk vs who makes the money in the world of food and other grown products (like cotton). It's a bit depressing to read because it's been going on for so long (hundreds of years in North America - thousands of years if you start where farming began) and is so intrenched that
permaculture is going to struggle to shift it (and some forces will try their hardest to not let it shift) and yet I feel for much of our farmland to heal, a shift is getting desperate.
Schools only teach the history they want their future workers to know - at least that was all I was taught!