Yep -- I have two words for you: Abu Ghraib. How many of the personnel who took part in the blatantly illegal acts there looked back and were appalled and disgusted with themselves? We can look from the outside and say unequivocally that those actions were so far outside the realm of OK that how could they not have known? But 1) you will likely find that one or two whose own "Overton window" is far afield of what is acceptable, and 2) those others who are easily convinced that they are right. These days, with the influence of Fox, OANN, etc., the second group is larger and easier to convince.