I've been to conventions for business where the same could be said. I was in one in VEGAS and within the hall we could definitely see the contrast because we left the convention of business and business casual attired folks and stepped into the huge casino-where women of questionable morals were offering to keep my husband and I company. There's a disconnect! Good thing it was a LegalShield convention:)
I have been to other churches where this is the same. An SBC conventiton or meeting for VBS teachers has a bunch of people dressed nicely and acting discreetly-and no one gave us a dress code direction at sign up. No one saw fit to comment on the worldly riff raff,either. Refreshing.
(OTOH, going to the mosque-women are very modest with head coverings, but the men, while modest, are definitely dressed for comfort and about 1/3 of them have beards, so they would utterly fail the JW test of conventional business attire. This actually pleases me on the principle of the thing. That our utterly modest and even biblical attire wouldn't make the cut for a KH meeting delights me)