That’s why we keep allowing ourselves to be talked into supporting unjust wars (not to mention actually dying in them), or voting for people whose main job seems to be to amass as much wealth for the rich as they can get away with. It is also why so many people are duped by exceedingly costly sugar pills sold to them by homeopathic “doctors,” and why we follow the advice of celebrities (rather than real doctors) about whether to vaccinate our kids.