This makes absolutely no sense to me. I don't understand how you can assert that Jimmy doesn't care when he was so focussed on his brother's wellbeing that 1. he rushed to help him, and 2. he fell for Chuck's trap and confessed.
1. His brother's wellbeing was put in harm's way by Jimmy himself. When Chuck helped Jimmy, it was not because Chuck put him in that situation. Chuck is far from perfect. In fact, as I said earlier, they are a lot alike. They just go about tearing the other down in different ways.
2. He got Jimmy'd. And the first time he gets Jimmy'd, he suddenly is worse than Jimmy's lifetime of Jimmy scams?
Jimmy had so many opportunities to come clean, but he literally lied to Chuck's face as Chuck came out of his catatonic state in a hospital bed. That's low.
On top of all of this, Jimmy's scan was not for the right reason. Why did Kim deserve the client more than HHM? The client was secured while Kim was an employee. They serviced the client well, whereas Jimmy hurt the client.
And why should Chuck just "admit he made a mistake and move on" when he didn't create the mistake. Jimmy lecturing Chuck on that was vomit inducing. Mesa Verde couldn't just move on. HHM's reputation couldn't just move on. Chuck is making a return to work and this puts his *faculties* in question.
Jimmy isn't entirely unaware of Chuck's grudge. In fact, he blames everything on Chuck, even when Chuck is not the culprit (Kim's doghouse). Kim even talks about Jimmy gloating over Chuck on multiple occasions. Jimmy's grudge with Chuck is every bit as bad as Chuck's. Except Chuck has quite a few legitimate reasons for the grudge. Jimmy's grudge is that Chuck doesn't think Jimmy would be a good lawyer. He's right. There's a trail of proof a mile wide.
What if proof of sabotage can help Mesa Verde recover. That the proven circumstances allow that provisional path. Would that not be actually the right thing to do? And unfortunately for Kim, her relationship to Jimmy will hurt her in this case. She might immediately become persona non grata. That is all on Jimmy.
As far as Jimmy and Kim, he isn't looking out for her best interest. Her best interest was to take that other job. It was a great opportunity. But that would mean she's even further from his social circle, which reduces his chance to end up with her long term. Let's not even get into the fact that he also derailed her at HHM.
This episode solidified Chuck's status as a total bastard. We now know that it's not just that he doesn't care - he has had a grudge against Jimmy for a while, and one that Jimmy is entirely unaware of. And he also knows full well that Jimmy cares about him, but abuses that knowledge to get him to confess.
Kind of like when Jimmy sent Ernesto away so he could sabotage Chuck, even leaving him alone unattended. Jimmy put Chuck's life in danger on multiple occasions. Chuck is just making Jimmy answer to his own actions.
And this is why the series is so great, like Breaking Bad. All the characters have flaws as well as impressive traits. And a lot of it is not based off one moment, but a series of forks in the road. Where a lie is needed to cover another lie and so on. And although some events/characteristics might be exaggerated, most seem quite relatable and plausible.