The public in general has a warped understanding of chimpanzees. If you go by the media, there are a ton of them out there. They are in zoos, circuses, commercials, movies, etc. If they are members of an endangered species, why are there so many of them around?
It's a bad perception problem for chimps.
And, of course, if they are so severely endangered, why are so many carelessly exploited for medical experimentation? They must be cheap and plentiful right?