That was a standing feud between the regular infantry and the Army Air Corps during WWII. The regular infantry used to mock the Air Corps guys in their nice clean uniforms and the way they would go to the clubs and brag about how hard they were fighting in the war. I would say that it was largely earned since a great majority of the men of the Army Air Corps never saw the war at ground level. They might as well had a 9 to 5 job.....go to the office, drop a few bombs, fly back home. The few times that I have ever heard of aircrews seeing what their day's work did on ground level, were really disturbed by it. They never took for granted what they were doing or ever made light of what the guys on the ground went through.