Really, without the metaphor, what's going on is that Larry Ellison has modified himself to hold the values that a corporation holds, in order to more efficiently drive said corporation toward optimizing on its corporate goals (i.e. increase share value, etc.) Where human values and corporate values are in conflict, Ellison has chosen to forget about his human values and, effectively, become the avatar of the corporation's interests. He's the "ideal CEO", in about the same way as Locutus of Borg is an ideal CEO.
A better analogy for this effect, for those who understand it, would be to compare Ellison to a https://wiki.lesswrong.com/wiki/Paperclip_maximizer, but that's not really that well-known a meme.
Hmm. I wonder why this augmentation is newsworthy/nontrivial/frightening. Perhaps our human frailty makes this feat truly difficult even for an average CEO?