I didn't think much of Ozymandias since I knew of the ending since before I read it the first time, and it's a shadow that hangs over how most people read the character.
It took until the unfortunate HBO series, because Iron's performance was a standout to really make me reread the series with that in mind and how charming and engaging he is.Instead of taking a read on the series on how it's foreshadowing how he's actually bad, I tried reading it and framing him as how he's shown as a good and charming man.
Manhattan is the one superpower of the world, but Adrian is the closest to embodying the classic lantern-jawed, charming, perfect physical specimen archetype of the superhero. As disarming and safe feeling as a Curt Swan drawn Superman. The book does it's best to portray him as a well-adjusted, concerned, selfless figure in the leadup to the final chapters. The effect of the ending is ruined if you believe he would be able to do what he did, and even the Rorschach and Dan are confused and chalk it up more to madness before even grasping his plan.
To this day, the biggest ailing of the Snyder adaptation is leaning into him being a creepy, obvious villain instead of playing on how he's meant to be a perfect hero
Adrian's actions are meant to fill you with unease, in the same way the ending of Miracleman,with him saving the Earth and creation a utopia, at the cost of any sort of dissidence and leaving humanity to be eternally babysat by superpowered beings.
The whole thesis of these works is that if superheroes existed, their solutions to big problems would end up being complicated and uncomfortable measures.
Imagine if Superman handed Luthor to the authorities and he was a drooling mess because lobotomized and gelded him. Not out of anger, but out of efficiency to get him to stop doing crimes and make him docile. Cold pragmatism immediately decided by a single man who's superior to anyone else. That's what Ozy should come off as.