“The lead researcher stated that it is “foolish” to use seeds with pesticides pre-applied (so-called ‘prophylactic’ use), and his summary conclusion is telling: “The way they’re used doesn’t make any sense,” he says. “It only makes sense from one motive. That is the profit motive for the manufacturer”.” https://www.ecologicalcitizen.net/pdfs/v02n1-01.pdf p5
Also repels ethics.