all of Chuck's actions against Jimmy come from the fact that he doesn't trust him...because of everything Jimmy did in the past...so you could argue that if Jimmy hadn't been a scumbag who stole from his parents when they were growing up that Chuck would trust him more and would have taken him under his wing.

I can't stand Chuck either but let's not act like his actions have zero context or reasoning. If you had a brother that stole, conned and weaseled his way through life and you worked your ass off to build a firm would you just hand them the keys because they went and got a law degree out of the blue?