By humbly admitting to being "blind guides" would destroy the fading illusion that they have any authority at all.
It's only this aura of divine authority which gives them the keys to the bank vault.
I suppose they could compromise and admit culpability: "All right, it's true, we were just another doomsday cult. Pay off the court fees and penalties to the molested and make sure they have appropriate psychological counselling, set up an enormous fund from selling off the property portfolio available to all who have been mentally and financially damaged by the Watchtower and JW org, disband the whole organisation and retire (in luxury lakeside appartments) and promise to never deceive people again".
Some hope!