...and as a result, you think he would have sacrificed hundreds of thousands of dollars and his career....to do what? Get back at the IFBB??
Give it up, bud...it's laughable.
Hey, I sure wouldn't walk away from all those dollars. But you asked for incentive to *even think about it*.
Being embarassed like that in front of his family, friends, and fans by a lesser athlete, on the world's biggest stage, at what was arguably his lifetime best shape... that had to hurt. The whole world saw him get punked, to put it mildly - his drop from 3rd to 4th was the story of the night. Dex had to spend the next 6 months hearing about how great this chump was, and you know he didn't like that.
So do I think he would sacrifice his money and career to pay them back? No.
Do I think it was enough incentive to talk a little trash to a bigmouth competitior in hopes that the message of "you burn dex again, you won't see dex again" reach the top? Sure.