Why does evil always win?

[Black Dragon]

This is generally known around here to be part of my line of seeking and my own issues. I'm in the same boat with more questions than answers. One thing I do see concerning this particular planet that allows the cycles of misery to continue without end is that authoritarian societies(which is basically all of how Earth society is set up) have a dynamic to where there are only predators and sheep. I don't think that sort duality is capable of producing anything but misery. What if I just want to be a stegosaur, live in peace and eat my veggies-until some dumbass predator decides to come for his pound of flesh, in which case I smash him up good with my tail. Why is it we fetishize this gamma/stegosaur archetype with all these superhero movies, as if saying an average person can't be this, and to be this(a hero, not a wolf or sheep), you have to wear a mask because it's unacceptable in Earth society. Why can't humanity be a heroic race, rather than a dichotomy of wolves and sheep?