[ShiShiLeo]

I think what sets Kamen Rider apart from other super heroes is the acknowledgement that the ideology of "Heroism" and "Justice" can be corrupted and misappropriated for evil. In the height of WWII, every participating country had their heroes, but it wasn't until it ended that those same heroes were now war criminals on the basis of having lost the war. You win the war, you become the heroes through control of the narrative.

Although it may seem less so today, I think Ishinomori didn't want to concern himself with heroes and rather advocated for nature, life, and peace.

Kamen Rider is about characters with heart and soul that typically manifests itself as compassion for other living things; and the solemn sadness of being forced to sometimes end lives to save lives.

There's an absolutely beautiful moment in Black Sun that reminds us of this notion where the Creation King breaks free from his captors and slaughters everyone in the room. When Minami and Akizuki confront the horrors of the scene, one of them exclaims: Is he crying?.