Jimmy's inevitable fall is going to be much more heartbreaking than Walter White's.
Walt was, let's face it, an entitled white guy who felt he was owed the entire world and why didn't everyone recognise his genius??
Jimmy's someone who's pulling himself up by his bootstraps, works fucking hard and is genuine about helping his elderly clients. Sure, he wants to get paid (he's not a schmuck after all), but he's not an asshole about it. He's an underdog, like them, and doesn't want to see them being screwed.
He gets his law degree and passes the bar, but the reaction from his brother is one of shock and Hamlin won't employee him as an attorney (but still takes his cake. Asshole)
Either Hamlin or Chuck (or maybe Kim) are going to screw him over in the Rico case and it'll be devastating.