So you're comparing common decency and common sense to overbearing vanity imposed on people? If I remark about someone's weight to demean them, that's simply dick behavior. Wearing whatever the hell you like is not. Now imposing that one may be somehow inferior for not paying an exorbitant amount of attention to dress (for vanity, no less), that's dick behavior - which was the crux of OP's comment.

And please, tell me how "if you strip away the pretensions from these things, more people would take to them" is the same as "the pretentiousness is necessary and the untraveled, uncultured, blah, blah, don't understand that, because, you know, uncultured".