I'm failing to see your point. A $9 /hr job that risks serious bodily harm vs a $12/hr job where the level of risk is say 5-10x greater? Where's this safe job you speak of?
Oh you're right, I misread. But in that case isn't it even less crazy? Different levels of risk pay different amounts, up to 33% more in the cases documented above?
I think we agree! That's exactly what I infer from it.