This is important because it lets pluralities build from people who are not aware they are being manipulated. Pluralities can lead to majorities and majorities, in a democratic system, create power. All this to say: I don't think those who have fallen for propaganda are living in a world they are satisfied with but instead that they are living in a world they've been told they are satisfied with and a lack of counter narratives have not shown them a better way. Consider that propaganda gets busted out whenever something isn't naturally popular or beneficial to most people, that is why we see propaganda most used around military efforts.