Soldato
It's called etiquette and manners. The two go hand in hand. I wouldn't expect a skirt wearing Jock to understand that though.
I would agree with the bold part. I would not agree that going in a white tux is not showing these characteristics, especially considering that it would be allowed as "summer black tie".
Calm down Nancy (or should that be Morag?), it's only a bit of light hearted tom foolery.
Non-blatant joking isn't very easy to detect on the internet, obviously.