"If an obscure libertarian like Grover Norquist can dominate electoral cycles with a "Taxpayer Protection Pledge" why can someone not similarly dominate elector

"If an obscure libertarian like Grover Norquist can dominate electoral cycles with a "Taxpayer Protection Pledge" why can someone not similarly dominate electoral cycles with a "Privacy Protection Pledge"?" I, for one, prefer when the 1% are not so influential in politics.