This article was about a lawsuit about chicken waste in 2010
http://www.washingtonpost.com/wp-dyn/content/article/2010/03...
The relevant quote from the article is a statement from Perdue Chicken "Perdue owns no factory farms," the company said. "Families that raise poultry for Perdue are independent farmers."
John Oliver had a segment about this last year: https://www.youtube.com/watch?v=X9wHzt6gBgI
We should be enforcing our laws that make wage theft a felony, but at least in the US there is minimal funding for enforcement, so only small businesses are policed. Jeff Bezos can keep committing felonies and forcing those below him to do the same due to the lack of enforcement.
They won't move fast, but triple damages and a nice fine for your employer can be a sweet reward for their fraud against you.
On a sidenote, the H1B strategy is very common in the Engineering field, most consultancies figure they can get a decade of work at below American wages out of the average H1B visa holder, saving them a few hundred thousand.