Marvel is the king of superheroes right now. While part of that is because of the massive success of the MCU, the only reason they've gotten as far as they have is because of their comics. Marvel didn't invent the superhero. Instead, they jumped on the bandwagon after the success of Superman, like every other superhero publisher of the Golden Age. In fact, Marvel drew inspiration from DC's notes for years, but was able to pull ahead in sales for one reason: their relatable superheroes.
Source:https://www.cbr.com/unique-marvel-comics-tropes/