Personally since I was little I've always had to struggle to find answers to these kind of questions. We are always taught that we should just conform to what other people consider just but because of this I a lot of people don't have time to reflect about the things that truly matter. Nietzsche talked about the importance of seeing the problems in society in order to not be fooled by things like morality. I think modern societies give way too much importance and attention to celebrities and politicians and promote an hedonist life style way too much like for a meaninful authority figure to show up. If we check what history shows us, our goverments with all of their flaws have made us a lot less violent so there must be some kind of figure that balances the desires of the common people. I'm not saying all hedonism is bad but I do believe that some kind of middle path must be found when it comes to that kind of things.
As I grew up I did and I still make myself a lot of questions about the meaning of morality and justice, but at the end of the day a good part of that curiosity came from myself, the only thing my teachers ever told me, like I said before, was to blindly conform. There was such a huge emptiness in me that I started getting familiar with a lot of superhero figures from many types of media. My favorite shows as a kid were Hulk, Spider-man, Power Rangers and that kind of shows and as I grew more I became an anime fan. I'm sure that this lack of ideal figures is common because I know a lot of young adults that did the same thing I did. To me, philosophers should have the greatest authority of any other figure in society since they see many of these problems and they look for ethical solutions. My advice is to reflect about many different things everyday just like the stoics.
I think that with how chaotic things really are, modern societies are suffering the existential crisis Nietzsche warned us about, which is the reason why he created his ideal of the Übermensch. Personally, although I do believe that extreme selfishness is neccesary for success, I also believe that living in a healthy society one can be proud of is of great importance because we are social beings and we need to be recognized by others.