There is a an issue in all statistics: "the seen and the unseen". It basically means "measuring benefits but not measuring costs".
Even if the statistics is accurate.
Even if denying people the right to self-determination is a positive in your ethical system.
Even if X, Y, Z are true... I still have to ask: what about the COST? Pesticides exist because they do something useful - kill off pests. They increase food production and decrease labor.
What if we've saved some lives...but also made 200,000 farmers each spend an extra five hours a week bent over in their fields, picking bugs off leaves? Or made them plant more land in order to harvest the same amount of food?