I read this as "it is impossible to determine truth". If there exists a well resourced entity who's entire purpose in life is to determine objective truth and they are unable to do so what chance do I have?
It might work at first and be effective for some time in the same way that a dictator can "get things done" but there is no free lunch.
Eventually you will get evil dictators, power hungry arbitrators of truth. It will bite you. It is only a question of when. It might be years or generations. The only winning move is not to play. Don't concentrate the power in the first place.