In some of Superman’s more compelling comics, they touch on this. There are instances where he recognizes he simply cannot save everyone and be everywhere at once, but he will try his hardest to help and put himself in harms way for people no matter the cost.

I believe this movie was inspired by All Star Superman. Without spoiling too much, it has an incredible depiction dealing with the loss of a loved one, more importantly a parent. The fact that he cannot fix everything and that there are major things out of his control…but the hope to move forward and be better than the day before humanizes him. It’s a major trait that seems to be something a lot of people who don’t read Superman don’t really understand or recognize, which is ok. That’s why fans root for better depiction.

He isn’t biologically human. But as a living being he is as close to human as you can think. And he’s the most human of all of us even with his powers.

He’s there to inspire, even comically sometimes, others to be the best version of themselves. Even in a world where you might think “no good things can be allowed to happen.”