The same can be said for other hobbies like, say, photography. There are people who can master a darkroom, manually set the exposure and speed and ISO setting perfectly, read a light meter and anticipate a shot but aren't good at taking a picture: they don't have the "eye" for it. They can't compose the shot.
Once a music system is properly set up to an audiophiles standard, they can listen and enjoy if they have the "ear" for it. It can be a wonderful set up but depending on who is listening, one can enjoy while another will dissect and analyze still further, losing sight of the music for the details.
I've been to enough (but not many) listening sessions with others at shows and exhibits to notice how many simply don't listen, but analyze, squirm in their seats, try to be polite while waiting for their CD to play and still not listen. It's like being in a room full of kids who don't want to be there. Short attention spans or ADHD. Who can say?
In that crowd I couldn't help but notice those who did listen, and they noticed me as well. It was like we were in a different room than the others: some eye contact and lots being said without saying a thing. The music and equipment seemed to be just a focus for others to group around. They didn't seem all that serious about the listening.
Boy, this hit a vein.
I think that's part of what separates most of us here in audiophile land, which is why this question comes up so often. Some of us get it and can't quite understand why others don't.
All the best,
Nonoise