Madoff got 150 years for non-violent charges (and he didn't even try to have anyone killed). Died in prison.
Madoff stole from the rich. That is a sure fire way to have the book thrown at you. Smart criminals steal from the poor, because they don’t fight back as much and the justice system doesn’t care.
It is wildly harmful and an escalation of monstrous practices to look at one or several unjust actions and/or sentences and declare that those who do worse than the person who was dealt out such a retribution should receive an even longer sentence.
If someone gets 10 years for smoking weed, the solution is not to put someone in prison for 20 years for punching someone.
The rule is: do whatever, but don't make the federal government look bad.
AKA file your taxes, essentially.
Madoff stole $20-35B, but by some measures a human life is only worth $10M. I am not really asserting those figures are comparable, just that Madoff stole a lot of money.