If you happen to own a decent suit (that's not meant to be an insult, I just try not to make any assumptions about anyone's wardrobe,) you can find me at Lux Fridays and Saturdays until close and 10 on Sundays. I would be glad to talk and make sure you get a good drink.
I can imagine a hundred thousand scenarios for which vampire kind might be useful, but what it really boils down to are the choices of individual people and not what they require for sustenance. Demons have the capacity to be as good as angels and the other way around. Morality isn't hardcoded in anyone's DNA. It's less a cop out for no other explanation as it is a catch all for too many.