You are funny Ken ;-)
I think you maybe missing the point (on purpose? ) it's not anything to do with formality, being part of a gang, or being subjugated by the our glorious (but un-voted for) leader ;-)
It's simply a way that when I pull up to a junction on a busy ride-out I will know for sure that the guy marking the junction is with us and not another group.
I will also know that if I come across a guy in front of me and he's not wearing an armband I can overtake him (or her) in a reckless fashion and they won't be shouting at me on the forum that evening :-)
If he (or she) is one of us, I can happily follow them knowing that I'm on the right road.
I don't think "democratic will" will come into it (I can't imagine James will be seeking a vote) it's just whether or not you personally wish to be helpful to your fellow riders, especially to the new ones who don't know us.
Hope to see you on some ride-outs this summer Ken, with or without an arm band ;-)