I can agree that Kaepernick and RGIII still have major development to do that their amazing running abilities will mask for 5 years.
Wilson isn't comparable. He can do the running stuff, but he doesn't ever look to do it. He doesn't need it now to be amazing, it's just another skill in his arsenal.
Kaepernick probably wouldn't be the threat he is now without the running ability, that's for sure. Same with RGIII, although I think both of them can be good pocket QB's.