I'm talking about helping out a situation where they face real problems with disease and hunger. For many people around the world, if the food doesn't grow, they don't eat. My proposal was to use the information available on the Internet to avoid pest problems, make better fertilizers, build irrigation systems for drought conditions, or drainage systems for floods. As for disease in some of these villages, we're talking about serious malnutrition, and deadly and painful diseases such as malaria and tubruculosis that eat away at you until you die. If the town doctor were aware of the symptoms and possible medications, people may have the opportunity to suffer less and live longer.
People can starve to death.
Lots of people die, many of them of diseases that the modern world has not been dealing with for 50 or 100 years. People may leave the community. There could be disruption and separation in the community. I'm not saying that these issues are not serious. They are very important and should be considered when designing a program to implement this idea, but hunger and disease are among the worst consequences of any action and if addressing these issues means that the community life or culture is disrupted, so be it.