The standard argument I've heard against "accountability" is that "leaders" won't "lead" properly if they know they could be held accountable for the consequences after leaving "office". It's utter bullshit, and there is absolutely no way for any of us to change it, or do anything about it.

I'd call for us to 'scientificize' the shit out of politics, but it would do no good. We all know what an utter failure the social sciences are when it comes to the scientific method. Mainly due to unpredictable human nature and the vagueness of social and political policy.