Ah, yes I particularly love that scene.
In that scene, Cao Cao is getting very emotional, which is interesting since he usually has a lot of self-control. Even when his plans fails or certain events are making a turn for the worse, he usually regains his composure quickly. But he can’t get Chen Gong to reconsider his decision, no matter what he does. He’s helpless there and in the end, he has to mourn the loss of someone he cared about, but who evidently had a low opinion of him. He’s willing to see past the fact that Chen Gong hates him and let him live and he really does want Gong’s approval too, but in the end, he can’t have that. Cao Cao is used to just picking everything up again after he lost and to keep going, but for Chen Gong, he has to beg and even that doesn’t work. He clearly cares about Chen Gong a lot, but no matter what he does, he can’t get him to stay. (Although Gong calls him Mengde in the end, so he at least gets some acknowledgement and reconciliation there).
See, Cao Cao is almost devoid from moral principles, since he views them as a hinder for him to be able to fulfill his ambitions. However, he isn't inherently evil. There’s people he cares about (like Chen Gong here) and he doesn’t do bad things without a reason. Throughout the show Cao Cao commits a lot of morally questionable acts, but he displays a lot of qualities that defines him as a great leader who aims to set an example, to bond with his soldiers and gladly welcomes surrendering enemies into his ranks. Personally I prefer such an individual over a character who goes on about philosophical rants about their great ideals and tries to hide the fact they’re only human too and therefore cannot avoid making bad decisions sometimes. Cao Cao’s ability to accept and openly acknowledge his mistakes is a great thing, and he doesn’t let his pride get in the way of things. This is what makes him such a well written character.
So yeah, Cao Cao is f*cking brilliant. And so is Cao Cheng and Xu Chu as well. I can't wait till you meet Sima Yi, Kaiserian. I'm sure you'll love him.
