Sure: because there's a load of power in politics, it should be minimised where possible, as the state has the ability to take your money and also to lock you up, so the people we pay for with our taxes need to be beyond reproach. There is no natural check and balance that the free market has where if I don't like a product or service, I don't pay for it any more.

They have access to money they take forever, so they need to be held to a higher standard. Thus in general, the market should handle money and not power (as it does, mostly[0]), and the government should handle power.

[0] an example of this probably being a bad idea is private prisons