To do so would be to cause scandal.
To whom? Although I know what you mean, I am not sure such people are capable of being scandalized, in the proper sense of the word, within such situations. For example, habitual fornicators and those who accept such behavior are not scandalized to learn that a couple is habitually fornicating. It affects them as much as learning that the high temperature is going to be 72 degrees -- no impact whatsoever.
FWIW, it seems more like confirming them in their errors.
I may be incorrect, but I see scandal as similar to tripping someone, whereas when I confirm someone in his error/s, it is like sitting down upon a man who is already fallen (or preventing him, in some manner, from getting up).