After watching the, frankly, zeal by which people pursued and relished in his downfall, especially in contrast to the amount of white collar crime that goes entirely unaddressed (or is considered "legal" by some absurd standard of judgement, e.g. the equifax pre-vuln stock sales) it seems like a capricious and uneven enforcement for the sake of "proving a point" (or "because he made himself so easy to hate" depending on how you look at it). In either case I find it an unsettling impetus for such aggressive enforcement.
Do I think he should be punished? Absolutely. Do I think his proceeding has become a circus largely driven by "soft" factors? Absolutely. Take this rant as largely a wish that we'd pay this much attention to the piles of far more insidious issues in our governmental/financial systems rather than seeing how hard we can steamroll some spoiled idiot, and a concern for the precedent normalizing this retribution sets.
If you steal a car, you go to jail. This dude stole 400+ cars. Does 20 years really seem out the question?