Non organic generally IMPROVES the quality of the food we get, getting it to market in better shape, giving it desirable quality, less spoilage, providing leaner meat, lowering the cost of production and so on.
There really is no pesticide free farming, and "organic" is really just a marketing term in most instances. In the U.S., trenbolone is almost universally used in livestock production, bovine growth hormone in dairy production, and antibiotics, for every form of animal production. In farming, pesticides, along with fertilizer and irrigation have made yields something like 300% higher than yesteryear.
Arguably, we are better off for having disease free food; certainly, antibiotics, and antivirals, have changed the world we live in a major way. Genetic engineering for things like insulin production has saved the lives of millions.
There is some new concern about genetically engineered foods (but, plants have been cross pollinated, and species cross bred, for a long period of time). Of special concern are some corns with pesticide-like qualities engineered into the plants. The question has become how much of that is safe to ingest?
Living is not without risks and there are always trade offs.
Science does not support the notion that "organic" is in any way better. It's all marketing. Demonstrably, non-organic production makes for better food quality and a lower cost of production. That's the facts.