Besides the 80/20 rule, is there a place for a 99/1 rule like when I decide to have nitrate-full, antibiotic-full bacon, or a non-organic egg, or something cooked in the wrong oil? Would damage control be taking a probiotic or/and digestive enzyme?

Sure there is, as we are human and life must go on, right? If that's the case, let it go, bless it, eat it, and take an enzyme before and a probiotic after. We are strengthening your body to adapt and survive and be able to handle this from time to time without incurring damage.