Sometimes the results of science are unintuitive, but they are facts all the same. The toxicity is an objective feature of the chemical properties of a substance. Whether, to what extent, and how people value such a substance due to its toxicity, and how this plays into their activities which might have assumed its nontoxicity is a subjective matter. The latter is what the manufactuerer is interested in when producing their product; if they consider the former objective fact, it is because the latter subjective evaluation makes the objective fact significant.