They've been lying to us for so long, they have forgotten how to tell the truth. No wonder they're embarrassed.
But worse we want to be lied to. We want to feel good. So the liars and the bien pensant have made the perfect marriage and the only casualty is truth.
Some of course have backbone and insist on telling the truth in the teeth of the lies, but they pay the price.
But the truth is out and won't be put back in the bottle. And who knows, we may loose our taste for lies that make us feel good, and we may develop a taste for being enlivened by the truth.