I tend to think most alcoholics display narcissistic traits. That's part of the disease for most of us--we are pretty self-centered and tend not to let other people's pain get in the way of our addictions. That doesn't necessarily mean we are INNATELY that way. We are more narcissistic the way young children are, before they have learned to share, to treat other people the way they want to be treated, to think about how their actions affect others.
Not very attractive in adults, but when it is attributable to alcoholism, the growing-up and awareness of others' feelings, can finally develop if we get sober. It takes work, though--and it's a big part of what the 12 Steps are intended to address.