Wikipedia says
A superhero or superheroine is a stock character that typically possesses superpowers, abilities beyond those of ordinary people, and fits the role of the hero, typically using their powers to help the world become a better place, or dedicating themselves to protecting the public and fighting crime.
So yes, he is definitely dedicated to protecting the public, but it feels wrong to call him a super hero. What do you think?
It’s literally this: https://en.wikipedia.org/wiki/The_Hero_with_a_Thousand_Faces
The vast majority of stories with a heroic protagonist will be a variation of this idea.
Seriously, Star Wars is about the best Joseph Campbell textbook you could ask for.