Influence and plausibly deniable lying are anti-fragile. By pointing out the lies that they've expertly hidden, you give them more attention. They'll use your accusations to play victim and promote their saintliness.

That's why, even if it's to your benefit, even if it's complementary, do not lend credibility to liars. They aren't loyal to the truth, so they aren't loyal to you either.

If you need to work with liars, you must conflict them by aligning their fate with yours. They are corrupt so you must corrupt them.

Daylight doesn't turn a hoe into a housewife.