Carol Dweck points out that intelligence stems primarily from lots of work and pressing on after failing. According to her, fostering stories where protagonists become amazing through training helps people push through the challenges in their lives.

Passing on stories where the hero has superhuman powers (most old myths, Spiderman, Superman etc.), however may not help as they didn't earn their powers. They just got them and started throwing cars, climbing buildings, healing people, whatever. However, I doubt those stories will die, we'll probably just alter them to make more sense knowing what we know. Like focusing on overcoming the difficulties in mastering their gifts.

Perspiration-oriented kids' stories like Meet the Robinsons and its Keep Moving Forward mantra will continue to get made as parents push their children into the Organization Kid's Lifestyle for Success. I won't complain, as I heart Rocky as much as the next kid and we'll probably figure out that 10 kg backpacks hinder more than they help.