I am not surprised. Most Americans do not even understand the significance of the salute. It is more than just a greeting or ritual, it is symbolic of mutual respect for our men and women in uniform. When a subordinate renders a crisp salute the very least you can do is render the same in return, to do otherwise is disrespectful to the rank you wear and the position you hold. You are leading those men and women, you must lead by example and show respect for their service. To put it in terms that explains it best, as the leader you serve your people first, then tend to your needs afterwards.