I've only met one of them and that a while ago, however asset to GA? No! he wasn't! He thought the skies should be reserved for him and his ilk and GA was a bloody nuisance that got in the way and was dangerous to real aviators. His thoughts on budget airlines are unrepeatable (there would be too many asterisks). I paraphrase him 'cos it was a while ago.
So I'm largely in the to**ers camp.