Are First Time DUI Offenders Deserving of the Punishment Imposed?

With ever greater frequency, the state is imposing harsher penalties upon those charged with a first offense driving under the influence case. The sentences indeed are sometimes very draconian. In many California Counties Courts are requiring actual jail time in addition to the jail the offender received when they were arrested and held before release. Is the requirement of jail just? Does the sentence fit the crime? Your comments are very much appreciated.