I audited several film courses in university, just because I could, and I saw all these films I would never have seen before, challenging, strange, unusual films. I still remember decades later watching the last few minutes of Zardoz and thinking, "What did I just watch?"
I guarantee you that you will never get such a world-changing reaction by teaching superhero movies.
More, the viewpoint of comic book movies on society is this: a tiny number of extremely powerful people are the only ones that can effect change, and everyone else is powerless.
And nearly always, these powers are inherited. Look at the number of kings, royalty, hereditary billionaires and even gods that appear in these series. Do you think that it's a coincidence that the two working class superheroes, Spider-Man and Ant Man, are named after insects?
It's Ayn Rand's wet dream. It's exactly the reverse of the message we need today, that individuals are powerful and that we can stop the inexorable march to planetary destruction, the precipice whose edge our "leaders" are cheerfully leading us toward.
The fact that Marvel or DC throws in some unrelated bit like WW looking at a baby is not "character development". It's someone checking off a box on a form.
And finally, the fact that each and every movie ends with a punchup. The poverty of imagination isn't an accident - it's quite deliberate.
Show them something entrancing that they might never see elsewhere, like Touch Of Evil, or In Fabric, or Soy Cuba, or one of thousands of films that depicts regular human beings and not men in tights and capes and the occasional lady getting into fistfights.