Aaaah the 'moral value' argument. So lets say due to some miscalculation on your part you somehow manage to fractionally infringe the blood alcohol limit somewhere downroute. It will of course, be entirely your fault, and using your moral argument you would presumably accept that BALPA should wash it's hands of you?
Edited to add that 'moral value' is highly subjective and I wonder who appointed you to make such a judgement?