I disagree with you whole-heartedly. Certainly everyone has the capacity for some level of creativity, but I think the type that we're talking about here is the same sort of gift that artists have.
Similarly to how some people are simply born with a genetic predisposition towards athletics, some people are born with the same sort of genetic predisposition towards mathematics.
The idea that everyone has got the same abilities is exactly the problem that we're talking about here. Some people ARE born with an advantage (or have one nurtured into them), and those people need to be allowed to excel, not held back because of those around them.