As the cost of labor rises, the market reacts as it always has by developing technology to reduce the need for workers.
From robotic milking parlors that automate and keep track of cows to customer driven ordering at fast food outlets, fewer workers will be needed in the future
Farm wages are well below the pay of most people eating the products and we see in the paper today, the latest woe is us story about the proposed $15 an hour minimum wage.
Employ as few people as possible, and do the best you can for those people. As it has always been, that's the recipe for success.