Re: STAR TREK INTO DARKNESS - Grading & Discussion [SPOILERS]
^ That actually makes a bit of sense, since Khan was never particularly religious anyway. So they really couldn't portray him as an authentic Sikh, because Khan doesn't care about anything but power. His name may be Sikh-derived, but that's it. He doesn't observe any Sikh traditions that we're aware of. In fact he seems to go out of his way to avoid them.
"If the world was perfect, it wouldn't be." - Yogi Berra