I assume your talking about the above under a bitcoin standard.
Paying politicians nothing would lead to more corruption IMO. Of course its a culture issue too.
I disagree about governments being run like businesses. OK the social welfare stuff won't likely ever be profitable, but why would you not build road like a business. Get the materials for as cheap as possible. Bulk procure between states and get discounts. Put harsh penalties for delayed delivery. Speak in business terms with businesses so they don't think govt is a pushover and cash cow.