Rather, he ground away his moral fiber moment by moment, throwing good effort after bad. There were lots of tines he could have stopped and just taken a minor loss overall, but he wanted to _win_.
Jesse was the only character with an upward trajectory. He started as a total loser, and was able to improve himself though gaining mastery and through finding responsibility.
He still fucked it up though, and was only able to just barely escape.
Junior was interesting. In the end, he was angry about the lies, but didn't have any problem lying himself.
I'm not sure if the authors intended that, but it was certainly there.