Nope. Graft. Use of public power for personal gain. 

Regulatory capture only works because the regulated contribute those fat, fat, political donations to the regulator to keep their privileged position. Like every other regulation that restricts market entry or protects only some at the expense of all, it's quid pro quo on the back of the public.

Want to get money out of politics? Construct minimal regulatory structures based solely on actual -physical- harms to particular individuals that are otherwise wide-open to entry. Make a government small and simple enough to not be worth buying.