For me, it illustrates the gulf between a public health perspective and an environmentalist position. The following dialogue between a believer in the health benefits of organic food and a sceptic may answer that. Let me explain why organic food is so important to good health. There is a vital relationship between the health of the soil and the health of everything to which the soil gives life plants, animals and people. Organic agriculture collaborates with Nature to nurture and maintain the soil, thus producing food able to sustain and promote health.
Food produced by conventional agriculture is less vital and less able to promote health.
It's not enough by itself. But I don't find it easy to change to a healthy diet. Being realistic, I'm only going to make changes which I feel highly motivated to make. With organic food, you are avoiding pesticide and nitrate residues which could increase your risk of cancer and who knows what else. That's not true.