Hold the phone! Tim Burton may not have physically made the film, or directed it, but it was only because of him that the film ever got made. The studios were incredibly hesitant to make a stop motion feature film (it was not a very popular medium, even at that time) and it was only Tim Burton pulling in all his contacts and throwing some of his own money into the mix that made it happen. When the studios later tried to interfere, he stood in front of them like Moses in front of Pharoah and parted their complaints like the red sea.
So I don't think it's wrong to give the man the amount of credit he's gotten, considering without him there wouldn't be a film.
Film is always a collaborative effort and it is not rare for one name to end up dominating over the others in the minds of the public and in advertisements. The question is, did everyone else get their due? Yes, they did. It went on their resume, they got jobs, they got paid for this job, Tim himself acknowledged their roles many times over, and in return they don't have to be famous and wear their hair in a white man's afro like Tim Burton because that's what's expected of crazy people who make awesome films like Nightmare Before Christmas.
Danny Elfman for instance, who did all the music and provided Jack's voice for the singing? Yeah, he's doing just fine.
Note to gamers: when someone shoots you in the face, they aren't "gay." They are "psychopathic."