Capitalism requires the plantation monocrop model to ensure (temporarily, anyway) delusional rates of return on loans.

That's one aspect of the system.  

The other is monoculture temporary replaces people with machinery.  This, in turn, "frees" rural labor allowing them to move to cities, increasing the available labor force in the metropolitan areas.  As the supply of labor increases in the cities it drives down wages.  

This is only one result of a system that seems to be designed to embrittle and then beggar the rural economy while ensuring the metropolitan areas are forced into wage slavery and poverty.  In both cases, labor is stripped of the economic rewards of their labor by the predators and parasites.

She believed in nothing; only her skepticism kept her from being an atheist. -- Jean-Paul Sartre