Not at all. One is empirical where you hone the accuracy of your world model while being able to prove it to others if necessary. It can even benefit their own development and actions, but doesn't have to. An emotionless individual can also possess this trait. Even early robots in A.I. that self-adjusted had a form of this.

Whereas, schafenfreude is an emotional response tied to others success or failures. Two different things with one being clearly superior unless one is pursuing emotional highs and lows.