You're putting too much on the Gus Fring thing, and not enough on Walt's ego. That scene put on display that Mike understood what Walt was about more than anybody else. He knew that Gus didn't have to die.
And now that I think about it more....(read after the next quote)
I had to think about this more. Mike is actually completely right.....because Walt is actually the person who forced Gus' hand to bring Jesse in. Everyone knew that Jesse was gonna fukk shyt up because he was a junkie. Walt still made up a reason to get Jesse to cook with him, and kick Gale out.
I had actually forgotten about that piece of information. We all like to think it's always been Walt & Jesse, but the fact of the matter is...if Walt had played his position, everyone would be alive. Him and Gale would be cooking together, making good money, he would've had enough money to help Jesse deal with his addiction and the death of Combo...
Facts are...Walt's induction of Jesse and defiance of Gus was the pebble that got the boulder rolling. Exactly, what did Gus do to jeopardize his operation except allow Walt to be a part of it?
So Mike was right, and had Walt pegged to the very last breath. You guys think Walt helped Mike out in the end "just to help out a business partner?" No, watch it again....look at the stare he gives Mike & Jesse when they shake hands behind his back. The same nikka that didn't even want to acknowledge Heisenberg, was dapping up the sidekick....and it ate at his pride and ego. No, the only reason he did all those things was for Mike to kiss his rings. He wanted Mike to say his name (Say My Name being the title of the ep), and Mike was the only character who wouldn't play into Walt's game.
In the end, I don't think Mike much cared about "his downfall," because he predicted it anyway. He knew from the beginning that Walt was "a ticking time bomb" and that if he stayed
close he'd end up being caught in the explosion. He stayed anyway because he wanted to provide for his 9 guys and his granddaughter. You guys think his pride was his downfall, but in actuality...Mike was doomed as soon as he compromised his beliefs about Walt. That ticking time bomb just went boom on his ass just like he predicted all along