No, G has it right.
I am off this morning to get the Armani suit back from the dry cleaners, I have purchased a new tin of Parade Gloss for the Church's and my Dege-Skinnershirt is freshly laundered, collar starched and ready to go. My Como tie is looking good and ready to go. I am looking forward to Farnborough.
Mind you, in the past I have seen some serious players appear at a stand, without formal attire (dressed in Jeans and T Shirt) and get some fantastic attention and hospitality after producing a piece of plastic (about the size of a credit card) with the magical words "MOD - Unrestricted" on it, no company, no rank, just their name, a photo and a few simple words...
In short, it matters more at Farnborough about who you are rather than how you are dressed.