Independent researcher fallen-on-hard-times Jordan Maxwell expressed his opinion on a Mark Passio show that the world cannot be saved.
His argument was that those who knew and preached that the revolution had to come from within were largely unsuccessful in passing the message, partly because it was re-appropriated by evil sorcerers who twisted it and used it as a means for control and power - e.g. Jesus and the Church - and partly because each has to ascend his own Mountain of Enlightenment whether aware of this or not and as a messenger (an angel in the proper sense from the Greek ἄγγελος) you can only show people the way, not carry them all the way.
Grassroots and community-based attempts to disengage from the control system will always be seen in a positive light by me but they too are vulnerable to suppression and governmental violence. In addition so few are enlightened as to what is actually going on in the world and to the fact that they are essentially prisoners and guards of their own self-made prisons, it could be argued that attempting to reach a critical mass is an almost hopeless task, at least in my personal locality.
At the same time, however, cosmic law will respond and give voice to those who are unified in themselves and so it is never a waste of time in such cases to plant the seeds of truth and morality as part of what Mark Passio calls The Great Work.