That's not the problem with superman. The problem is that he can never be in any conceivable danger
If you wanted to make a comic about how he was a good person, then you could make a good comic, but it wouldn't be an action comic. It wouldn't be what people wanted from a superhero story. It'd be something like that Hulk film, or maybe Fargo. A good story, but not one with a single fun action scene.
I'd be down for a comic that was 100% Superman talking suicide victims off buildings, but that's not what everybody else would want.