The Greaser - sorry, there are no different perspectives here.
It's one thing to take risks with your own life, quite another if you're entrusted with potentially up to 400+ other people lives.
I don't care if a pilot parks on a double yellow line - I sure as hell do if they drink, and then drive.
One night you have a few drinks and drive home.
One night you have a few drinks and go to work.
What's the difference? NONE.
Yes, people make mistakes. And they are punished, be it fines/prison etc. And I'm afraid for drink drivers, never being a commercial pilot responsible for other people's lives is part of that. It's really that simple.