While practical and maybe inevitable, this approach will alienate exactly the kind of people you want on your side if you want to _actually_ reach your goal and course correct when needed.

Instead you will attract people who will happily pretend to be on the right path and will keep performing rain dances on titanic.

What you propose can work if it is a technocratic conspiracy where people who know what's going on maintain power and can update direction relatively easily (we were always at war with Eurasia). Then again, there is always a risk of losing real power to one of the mid-rank rain-dancing activists and screw up the whole project, maybe for good.