The magical lobotomy is bullshit. Satoru Suzuki is just as apathetic and uncaring as Ainz to anyone outside his immediate circle. He's the guy that would walk over orphan corpses and spend most of his time and money being terminally online.
You can't even say that the emotional suppression is actually affecting him meaningfully because we literally see his emotions in his head, he can still feel fear, disgust, embarrassment, hell we see him feel genuine anger at the deaths of the Sword Of Darkness and Shalltear's brainwashing.
And he becomes actual friends with Keno in the sidestory.
He just doesn't give a damn about everyone else.
Uh no? First things first everyone stepped over street orphan corpses they were all over the place.
Second Ainz notes within the first book that he should feel something watching villagers be slaughtered that he should be disturbed by his new boney form. He moves on after concluding he's become undead in both a physical and mental capacity and we know this happens with other players such as the minotaur sage. We also suspect one of the thirteen heros was driven insane by his race.
From overlord volume 1 page 117
He should have been afraid after seeing what his body had become, but Momonga was unmoved. Indeed, it even felt natural to be that way.
from overlord volume 1 page 118: Right now, he possessed an undead body and mind, but there were some remnants of his humanity left. Therefore, even when he experienced emotions, if they surged to a peak, they would be immediately suppressed. If he continued on like this, he might end up losing all his emotions in the future. Of course, even if that happened, it would hardly be a big deal, because no matter how this world turned out or what happened to his body, his will was still his own
From overlord volume 1 page 144
If he could extract more information from it, perhaps he might have a reason to save them. But as things stood, there was no reason to save this village. He should abandon them.
Momonga was taken aback by how he could make such a heartless decision. A cruel slaughter was occurring before his eyes, but the only thing he could think of was the good of Nazarick. There was nothing like pity, anger, or worry, basic human emotions anyone should have. It felt like he was watching a TV show about animals and insects, where the strong ate the weak. Could it be that as one of the undead, he no longer considered himself part of humanity?
Overlord volume 1 page 240
Ainz had once been a human being, and now he was undead. From just now, he had sensed that Albedo hated humans very much. However, it did not upset him or make him feel depressed. Rather, he felt that such thoughts were quite suitable for the inhuman Guardian Overseer of the Great Underground Tomb of Nazarick
Yes ainz was apathetic before his lobotomy and in many ways it just amplified what was already there but his cruelty and natural monstrousness that keeno motes (Calling him a very cruel evil man despite being his best friend) in the side story weren't present until he had magical brain surgery.
From ovelord bonus volume page 236:
He had terrible taste in naming. He laughed at the strangest things. He treated the living badly. He made up incredible stories at the drop of a hat. He would gladly sacrifice the lives of others for himself — and for Keno. He was a very cruel person
How does him having emotions/connecting with keeno undermine the fact he got a magical lobotomy at the start of the series. He goes form considering himself human to seeing them as small ants/animals/pets. He notes he is no longer human and that what remnants of his humanity remain may fade with time. And he simply concludes it doesn't matter to him if they do
You can hate it if you like but it is 100% undisputable fact that on arriving in new world your become your avatar/race in a physical and mental capacity, with all that entails.
