Cognitive dissonance is extremely "expensive". Deliberately suspending one's beliefs takes very good storytelling and/or resources corresponding to a movie budget. All that so that each person could suspend their beliefs for a couple of hours.
For the kind of long-term emotional investment it takes to do research or develop something new, one (typically) needs to have "buy-in" at an emotional level (aka irrationality). Few humans can invest a lot of their time/effort/resources on things they believe are probably not worth the trouble; sustained dissonance would probably cause burnout.
For the kind of long-term emotional investment it takes to do research or develop something new, one (typically) needs to have "buy-in" at an emotional level (aka irrationality). Few humans can invest a lot of their time/effort/resources on things they believe are probably not worth the trouble; sustained dissonance would probably cause burnout.