True, there are some people who need other people making decision for them, but there's plenty that are held hostage and are perfectly capable of finding purpose and joy without a cult leader.
Get rid of the cult for the benefit of those members who can live without the cult and at the expense of those who need the cult to be happy. You have gains and losses either way, but I side with "the hell with the cult" and let the chips fall where they may. I think there will be a net gain.