They never do anything with him. The last time he got really over was with the Chyna thing and that was years ago. All they ever do is give him abit of a push, then bust him back down, etc. They might as well just cut their losses.
And as for the main event spot have you been watching the last couple of weeks? Henry had a program with Goldberg were he took him out, controlled most of the match and screwed up alot of moves I might add and they didn't even job him cleanly to Goldberg. And this is Mark Henry we're talking about.
No by my logic Dustin should be were they are, upper midcard. You know getting more mic time, matches, etc. Cause he's over and can work unlike guys like Orton and Bastia.
BTW, I don't really hate Orton and Bastia I just don't think they should be having the pushes they are getting.