There has been some interesting research over the years about barbershop and constructions of masculinity. Richard Mook, in particular, has investigated the discourses in both golden-age (i.e. early 20th-century) and contemporary barbershop ensembles and shown how they configure the harmonic experience of expanded sound in terms of homosocial bonding.
This is possibly why you can get a room full of barbershop judges watching a video of the Gas House Gang's of 'Bright Was the Night', and the men are raving about what an amazing experience it is, musically and emotionally, while the women are saying, 'Yes but it's just chord-worship, isn't it? It's all about them; they're not really interested in the woman they're ostensibly singing about, are they?'. And both, in their way, are right. It is an amazing performance, but it is more about lock and ring as symbol and enactment of the bond between singers than about the content of the lyrics. And the comments posted on youtube about it are telling in this context - the verbal equivalent of punching the air and shouting 'yeah'.