JW411,
I don't think that there was any general case that Air Trafficers were of greater artistic merit than the average. Perhaps they were inspired by the constantly changing cloudscapes and light on the other side of the triple-glazing. (Except for the poor troglodytes of Area Radar, who, like Fighter Controllers, spent their days immured deep down in their caves and never saw the light of day, like pit ponies).
Even the popular myth that the WRAF "Stunners" (officers and airwomen) were routed into ATC was/is (?) not universally true, but I have "
ever found it so - Benedicamus Domino".
(Apologies to Belloc or Chesterton ?)
Danny.