Seems like a large part of why industrialisation of farming took place was to make the process of agriculture more capital intensive and increase profits. Industrialisation of farming has had awful effects on the environment but another effect is that it displaces farmers who are then forced to move into cities, therefore adding to the reserve army of labour and reducing wages, which is again good for capital owners. GMO has played a part in this too, with the added fuckery of IP laws in something as fundamental as agriculture. This is the case in India at least.

Lots of these ex-farmers would be better off if they owned land and grew food for their own communities or for the market rather than making useless commodities.