Really? Where did I go wrong? I thought philosophy had everything to do with ethics and certainty, not anything to do with politics.
Socratic philosophy is all about the former; the latter is Descartes' demand.
not anything to do with politics
One must certainly be moderate about what can and should be accomplished with the knowledge seeking wisdom brings, and philosophy does seem to be primarily a private good rather than one easily or unambiguously made into a public good, but gentle admonishment and persuasion seem legitimate ways to give a smidgen of wisdom to power. Seeking knowledge of the good is the purpose of philosophy. Applying that knowledge in whatever amount it's possessed and learning how it can and ought to be used is the job of political philosophers.