It is unclear to me that artificial intelligence adds any risk there, though, that isn't present from natural stupidity.

Right now, look, so many plastics around us, food additives, and other novel substances. Rising cancer rates even after controlling for age. With all the testing, when you have hundred random things a few bad ones will slip through. Or obesity. This (idiotic solutions) is a problem with technological progress in general.

edit: actually, our all natural intelligence is very prone to quite odd solutions. Say, reproductive drive, secondary sex characteristics, yadda yadda, end result, cosmetic implants. Desire to sell more product, end result, overconsumption. Etc etc.