Jake Shields did NOTHING to be #2 WW besides beat Hendo at MW. That was impressive, but has nothing to do with his standing at WW anymore after losses to GSP and Ellenberger. He should have never been #2 and never was #2 if I can recall correctly. Jake Shields is a great example, because he was a top 5 MW and can't break the top 10 in WW anymore.
Mike Swick is a top 10 WW? He just lost to Matt Brown. Maybe 3 years ago. Kampmann was #6, never made top 5. Close though. Maia is a top 10 WW I guess, I will give you that. Belfort has a huge * next to LHW champ because he won with a knuck to the eye and got DOGGED in the rematch. Marquardt is not a top 10 WW yet.
Shields did nothing to be a top WW?
other than go unbeaten for over 6 years and get wins over guys like Kampmann, Carlos Condit, Yushin Okami, and Paul Daley(though I don't think he's very good people like to mention how Diaz beat him and is thus a top WW so.....)