Jazz music vs. classical music

I heard someone say that jazz musicians get more opportunities to be creative and artistic than classical musicians who only get to play what's on the page, and that kind of struck a chord with me -- no pun intended -- because I have dabbled in both and I really don't think that one of those musical languages offer more artistic freedom than the other, or at least it shouldn't be that way. I usually bring up the shortcomings of classical music, but for once I am defending it.