It's not all or nothing. Good policy accomplishes the goal and attracts masses. For whatever quality metric you assign to a voter, you can't get the majority w

It's not all or nothing. Good policy accomplishes the goal and attracts masses. For whatever quality metric you assign to a voter, you can't get the majority without including some of those below the median. In large populations, for example, 'knowledgeable' implies you need to convince people who know less than average as well as the most knowledgeable. And the average is real, real low on specific knowledge about complicated issues.