If court failures, tanking public opinion, and loss of tax-exemption really did get past a certain tolerance threshold, the GB and a handful of select Helpers could secretly bugger off to the Caymans (where the Org has millions stashed - seriously), whilst letting the rank-and-file loyalists convince themselves they'd died and/or been "raptured" away.
I'd actually be fine with this.
Know why?
'Cause...
a) ...the heirarchy and said loyalists couldn't tie their fucking shoelaces without the GB's direction, thus further hampering the Org's ability to function, and...
b) ...they could never leave and run the risk of exposure, embarrassment, and uncomfy questions.
It would amount to a self-imposed life sentence in exile.