lillamy is correct, IMO. Whether it's "fair" that the family suffers consequences as a result of living with an alcoholic, the fact is that they DO.
Her response came in the context of someone's suggestion that you should not report your spouse's driving drunk BECAUSE of those consequences. The thing is, let's say you don't report it because of the potential financial consequences (legal fees, possible jail time, possible job loss--depending on job, etc.). They could still wind up (a) getting arrested anyway with the SAME consequences and/or (b) killing or badly injuring themselves or someone else--which might result in prison time, not to mention potentially devastating financial damages as a result of a civil lawsuit. THOSE consequences affect the family, too, don't they? And potentially MUCH more severely.
The fact is, alcoholics wreak havoc everywhere they go. Families DO get damaged. The consequences of a DUI are mild compared to what COULD happen.
When you don't know someone is an alcoholic, obviously you cannot do anything about it. But every day any of us stays with an active alcoholic, we are rolling the dice. Bad stuff may happen--bad stuff that will affect us and our children. It doesn't mean we "deserve" it. But it is a risk that we take.