[ At the end of the day, Vincent probably knows the old man better than his son. Probably not in any personal sense, but he spent time as a Turk under the former and brief encounters at best with the adult Rufus. ]

I'm not sure selling out is the right word to use. Rufus is clever and careful. But ultimately I think he acts in a way that provide the most benefit to his future plans. Being made vice president may be a way to keep him in check and under observation.

[ More sounds, suggesting that things are finishing up in the kitchen. Strong garlicy smell is definitely backing that up. ]

He might sell his father out. But he would probably avoid anything that ties him directly to his father's death. He was set to inherit everything so why bloody his hands? You'd have to present him with cold proof that it's in his best interests to move that openly and join hands with you. If you go for the direct approach.

[ No one ever said that Rufus Shinra was sent away far from Midgar to supervise other interests because he was a filial son. ]

Food's almost ready.