I'd side note that estimates are still 1 billion people work in agriculture (ref: grain.org/world bank) and many more are in the transportation, processing, and

I'd side note that estimates are still 1 billion people work in agriculture (ref: grain.org/world bank) and many more are in the transportation, processing, and selling of said agricultural products. The vast majority of these people still only earn enough or little more than enough for a day's food (not a huge surplus of wealth). Furthermore, lack of capital (lack of machines as you will) is still prevalent in many industrialized countries, even in the U.S. Disclaimer: I work for Kiva now, so my perspective is skewed to focus on this group of the world.