Those quotes seem rather weak to me. Especially the last one. Armchair psychology, you're worried about your own propensity towards irrationality, so you seek to master it by focusing on irrationality external to you, as by seeking to wipe it out. Kind of analogous to evangelical christianity. I'm not sure rational heroes and irrational villians in a morality play is as valuable to us trying to build our best models of the world, including of various irrationalities as natural phenomena. Whether we should expend effort to convince people not to engage in various irrationalities is an empirical question, and maybe one that has different answers in each instance.