I think you are right this is one of the few times Dilbert has lost control. Scott must be trying to portray the frustration of the times through this action. The lack of intelligence and the over abundance of greed in the business world today is hurting all of us. Calm down Scott we will all get through this, even Dilbert.
Wow. Dilbert's reaction caused him to develop a mouth all of a sudden...is that the equivalent of an evolutionary leap for our intrepid hero, or has this phenomenon occurred previously? I for one have not EVER seen it (apart from the animated scenes), and as another poster mentioned, I even detect a hint of an eyelid (ANOTHER bit of Dilbert anatomy that has escaped my notice).