A guy posted on another forum I go to that said he trained under Wong Jack Man, and that it wasn't about teaching westerners martial arts. He said that Man was actually teaching whites, blacks, etc, as the time. It was more about Lee being a young upstart, cocky, etc. Of course, I read this online, so it must be true...
Personally, whether Lee beat down one or one hundred guys doesn't mean squat to me. I've looked around, and taken other arts, I find that JKD is the best for me. I'm not taking it because Lee was a super bad ass or because he made movies.