Would you agree that the super hero genre lacks depth? The protagonists are always similar, tragedy-ridden and repressed at first, but then determined. The villains, one-dimensional. No matter what, there's some lazy plot about terrorism or a bomb or possible ecological disaster, that the super hero has to prevent from happening. Not much creativity, blandly mapped to Campbell's cycle, while terribly cheesy. Worst, it's so human, the desire for an Ubermensch, someone "magical" beyond limitations
These types of stories have always dominated our imaginations. As someone versed in Campbell, I assume you already know that. I think that most of these stories, while predictable, are pretty solidly entertaining. There is a huge appeal for people in the idea of seeing someone transformed from a lowly high school nerd into a wall-crawling, spandex-wearing crimefighter. In other words, we love to see the powerless become powerful. When you think about it, a lot of literature, cinema, etc. has similarly themes. Even Citizen Cane is about a man from humble beginnings who attains massive power. You’ve identified the narrative staples of the genre, but I think that you’re confused if you believe for a second that doing so is the equivalent of making a case against the genre.