That's assuming that the chance for conversion is equal for everybody. I believe that's a fallacious assumption. What traits do you or I have that distinguish us from the others?

...Well, actually, you're quite intelligent, but - the majority of us weren't important in the least at the end of the first trial. But as I said, Missile is actually an excellent candidate for conversion... in that even if he were the last VIP left, who would truly suspect him?