The entire farming industry is distorted. It's much more subsidized and controlled than most industries. For instance we literally pay some farmers not to grow food. And at times when harvests are high the government will prevent farmers from marketing some portion of their harvest which, in extreme cases, can mean that food simply ends up getting destroyed. It's all about extreme manipulation of supply to try to control prices.

I'm not really supporting or opposing the system, which is a topic for another place, but just mentioning that farming is not like people think it is. So trying to determine what 'market wages' would be like is not really possible when much of the entire industry is operated outside the bounds of the market.