Why is that? Gorillas are not human beings, nor are Chimpanzees. Since they are not human beings, they do not get to participate in human affairs.
You'd probably not survive too well dumped into the Gorillas' environment, either, with no tools or clothing. In that regard, Gorillas are better adapted to their environment than humans. Gorillas, on the other hand, would not do well participating in human activities that require our special adaptations, like intelligence.
Arm wrestle a chimp. You will lose. That means that chimps are superior to humans in arm strength. Challence a chimp to a game of chess, however, and the chimp will lose, even if you are novice player. Humans are superior to chimps at board games.
Again, we're not better than other apes...we're just different.