No offense, but your instructor is blowing smoke up your behind.
In what way? We do light contact sparring with no strikes to the head or below the belt (i.e things that would be effective in a real fight). In what way is my instructor lying to me by saying that's a sport version of fighting? It's a game. It helps develop timing speed and an understanding of distance, but it's still just a game. Certainly in a real fight I'd strike to the lower body or the head.