I think it's just the real life personality of the guy. Take Bret Hart. He was main eventing with the WWF time and time again. He was the WWF's main guy, but did Hart refuse to do jobs or refuse to work with people just because he held some power? No. Hart did what was asked of him. (Except for that one time AND THIS THREAD BETTER NOT TURN INTO THAT
) It's hard to answer these "What If" questions, so I don't really know if Jericho would of been like that or not.
Oh and if you want to mention backstage bullshit, put Taker in there.