Funny that you mention starvation wages. 50 years ago, you would have had to spend twice as much on food and you wouldn't have gotten anything at the level that's available today. I'd encourage you to read some of Megan McArdle's posts on how we look back at historical food preparation with glasses that are extremely rose colored.
50 years ago is only the 1960's. Food was more expensive then in no small part due to the fact that production was mostly by family farms. The economies of scale that have wiped out rural communities around the country had only just begun to develop in earnest. This meant small family farms were still competitive in the market and could enjoy a high quality of living. I welcome an explanation of how driving family farms out of business with vanishing margins and concentrating what little profits remain in the hands of massively capitalized corporate farming outfits is a net win for society. Note: cheap food is ripe for all of the standard criticism normally aimed at trickle-down economic theory so plan accordingly.
Also, define "food", because we can certainly devote some time to discussing processed foods.
