I don't know which country you are talking about the economic conditions of, but in general, such tragic events would not happen in developed countries and countries with large areas of agricultural land. There are many ways to overcome this problem, poor people will try to cultivate the land to plant plants that produce staple crops, they can also market agricultural products to maintain economic stability. The elite may be able to enjoy everything, but the poor can also survive by relying on food produced from agriculture.