Deception without lying is the gold standard for those who wish absolute control over their fellow men. Evil knows the truth and has no use for it; evil will reward the best deceivers with power, but will throw to liars only the bones of simple errands.
The ultimate challenge to evil is to make everything that everyone believes a false construct: elements of truth falsely aligned to a deceptive conclusion. That state of mind can be controlled, absolutely. DemonicRat parrots and lemmings are modern day evil's best work.
IMHO
“They lie. They lie and we must be merciful to those who lie. I hate them, I do hate them, those nabobs.” Col. Walter E. Kurtz. This coming from a man who had “very obviously gone insane”. Who had I think more sanity and reasoning ability than any progressive politician today.