You could have attempted to starve 20 poor people with your income at any time. It works only if your increased demand does not bring any additional food onto the market. This is why we need prices to rise -- we need people to notice "Someone is buying 20 people's worth of food, so demand is now 40 instead of 20, so we can finally make money by (selling our stockpile/reducing wasteful consumption/not producing ethanol/building a greenhouse)".

>You could have attempted to starve 20 poor people with your income at any time

We starve people on this planet all the time with more than enough available resources.

The problem now is unbalanced distribution that will take some amount of time to sort out no matter how much money is thrown at it. The US eats out a huge number of their meals. That has pretty much collapsed in the past week and now something like 30-40% of the food distribution market has been upset. The people in the restaurant food distribution market want to sell their food, the problem is without guidance from anybody it will take some time for this to occur.

Thinking that making more money fixes all problems is a definition of insanity.