I think the reason in the long term Palin will continue to be a potent force in US politics, contrary to Conroy's opinion, is that as she continues to keep on the message of corporate crony capitalism her resonance with independents will thrive. By winning over more independents more conservatives will muster the courage to again stand with her and her free men and free markets message.
UPDATE: IBD on 5 Reasons Palin Will Remain Relevant