I mean, 17 years for a car accident, drunk or not, is completely draconian. Murderers and child rapists regularly get lesser sentences, and their crimes were malicious not negligent.
There’s no benefit to society to lock anyone up that long for something that can be corrected with a compassionate justice system. If we can release them with confidence that they won’t make the same reckless decisions again, is there any point to locking them up for that long other than to make them suffer?