Just so I am clear, you are saying that we should forgive a drink driver in charge of a powerful motor vehicle (in evidence) on the basis that he may have a mental health issue (not in evidence)? If you drink drive you are putting innocent pedestrians, cyclists and motorists at risk of death, it's not OK. In any circumstances, just because you are suffering (again, this is supposition on your part, no evidence was presented in mitigation) doesn't excuse reckless, dangerous and criminal behaviour.