One of the redpills of the story, for me, is realizing that there are basically three real "superheroes" in the story: Rorschach, Ozymandias, and Dr. Manhattan. And they are "superheroes" because they are removed from human frailty. Manhattan literally isn't human any more. Ozy is willing to kill, and to die, for what he believes to be right. Rorschach is willing to do the same. They are, as >>150948570 notes, uncompromising, to a literally superhuman degree.

And Moore's main thrust in the story seems to be that this is a bad thing to be. That to be superhuman makes you, basically, inhuman. It robs you of your humanity, because humans are frail and complex and falter and make mistakes. Dan and Laurie are the real "humans" of the story and I think it's telling that THEY get to live happily ever after, while the three superhumans die, self-exile, and in Ozy's case are left with a sense of futlity and impending doom. The three superhumans don't get to truly be happy, the two "normal" humans do. Moore seems to make a point of this, and does so because arguably the message of Watchmen is that being superhuman is bad, and dangerous. That being above humanity, more-than-human, is to cease to be human, and this is a dangerous thing, both for yourself and for those around you.