Food chains

I watched a movie over break about the Labor to produce food, specifically tomatoes in Florida, and it made me so sick to my stomach. These people are mostly mexican immigrants and live below the poverty line. During tomato season they sometimes cram 15 people in a trailer because their rent is so high. They work extreme hours in almost 100 degree weather and get paid almost nothing. Basically what the problem is, is that the supermarkets now control prices not the sellers so however much they pay the seller has to get used for transportation and all their costs so whatever is left goes to the workers. The workers did the math saying that If they sold the tomatoes for an extra 2 cents more it would raise their wages by a lot! That blew my mind because that's s lot of tomatoes.