I was in organic farming for a while, and I get that it's economically more expensive, but the fact that this is a problem is a cultural construct - it's only a 'problem' if people choose to pay more towards disposable electronics and movies at the cinema instead of good, quality, environmentally-friendly food.
I think that big chemical agribusiness like Monsanto have bought and paid scientists, abusing the mechanism of scientific study simply to use it as a giant advertising and regulatory-compliance mechanism. They have bought out some voices in the scientific community, and consequently, fooled many more - via the social mechanism of peer pressure.