Agree with above. Jack's downfall was the same as Walt's. Pure pride and massive ego. He couldn't understand the fact that Walt had the nerve to call Jesse his partner...and like in the episode before..he couldn't have let Jesse continue to cook the same meth that netted Walt $80 million after watching the Confession DEA tape. If it weren't for Todd he would have put a bullet in Jesse's head right then, remember?
Jack could have had it all and won if his nephew wasn't there that day. Walt's money was way more than enough for a lifetime as he put it. Lydia would be gone from the equation, no more blue meth report on the TV.
Then again, when you have $80 million, $160 sounds much nicer
Although since I am not a Chem teacher or a Nazi I sadly will never know