A couple of years ago I was getting prerecorded robocalls from a collections company. The recording asked for someone else. When I finally reached someone at the company, one of their first questions as I complained was, "Well, are you a debtor?" I was not. Impunity leads to arrogance which leads to more impunity. There may get to be a feeling in clusters of people like debt buyers that shitty treatment is OK because the person wouldn't be there in the first place if they hadn't done something to bring it on themself. People tend to get desensitized when you have a colloidal suspension of disingenuous cries of "I'm innocent!" mixed in with actual innocence. The authority figure gets cynical because they, too, might try to do their job and compassionately pick out a "true negative", someone who should be exonerated or left alone. The compassionate authority figure tries to do the right thing, and the true negative could then detonate themself. Then the compassionate authority figure will catch a lot of shit for missing them. This is why police are so deaf to someone saying "I haven't done anything!"
"Yeah, tell us something we haven't already heard a thousand times before."
I completely acknowledge that there are problems in all the possible quadrants, true positives, false positives, true negatives, false negatives...