I don't know what you mean by Labour being holier than thou. They have been courting big money for years and were quite open about big donors etc from when they were in opposition.
I think untill we have a cap that is enforceable on how much politicians can spend then rich people will always have a hold on politics.
Oh and I am still waiting for Cllr John MP to provid documentary (or any evidence) to support his Christie Hospital Closure campaign.