[KC_Connection]

When we started the show and thought about Chuck, he was somebody who was fundamentally helpless at the moment,” executive producer Peter Gould tells EW. “He was somebody who Jimmy had to take care of. And part of the reason we loved it was because it humanized Jimmy. We thought the connection between the two brothers gave us an insight into Jimmy’s heart, to understand how and why he became a lawyer. Once we saw Michael McKean play Chuck, he brought some colors to it that I don’t think we were really expecting. Chuck, as Michael plays him, is someone with a tremendous sense of righteousness, sometimes self-righteousness. He’s also a guy with a lot of pride. And as we were working our way through the season, we started talking about how Chuck really feels about Jimmy.

“Part of the reason Jimmy’s always gotten into trouble is because he could never equal Chuck,” Gould continues. “Chuck was always the good brother. But from Chuck’s point of view, Jimmy was the one who got all the attention. Jimmy was the kid who would make everyone laugh with a joke. And Chuck, for all his ability and all his brains, really doesn’t have the common touch. And we realized—and it came as a shock to us—that on some level, Chuck is jealous of Jimmy. And that Hamlin wasn’t the problem for Jimmy, really; it’s Chuck. Chuck does not want Jimmy in his law firm. It makes Chuck deeply uncomfortable for so many reasons—some of them legitimate—to have Jimmy be a lawyer at his level. And one of the things I love about the scene at the end of episode 9 that [co-executive producer] Tom Schnauz wrote, and that Bob and Michael played, is that Chuck is not all wrong. Especially those of us who watched Breaking Bad know that there is an element of truth to what he says: ‘The law is sacred. If you abuse that power, people get hurt. This is not a game.’ And that brings up the question: How much is that a self-fulfilling prophecy? Does Jimmy act out because deep down, he believes what Chuck thinks of him?”

http://www.ew.com/article/2015/03/30...ld-jimmy-chuck

Gould talking about Chuck's reasons for making the decision he did (both selfish and principled). Also gets into the whole self-fulfilling prophecy debate about Jimmy's own bad choices (and whether Chuck's opinion of him as a scumbag plays a factor in them).