They have to demonstrate it, not just say it. And if they do try to demonstrate it, there is a high threshold to meet, inconvenience or cost isn’t enough.

This is straight out of the sociopaths handbook.

“Oceanic society rests ultimately on the belief that Big Brother is omnipotent and that the Party is infallible. But since in reality Big Brother is not omnipotent and the party is not infallible, there is need for an unwearying, moment-to-moment flexibility in the treatment of facts.”