While "whats-her-name" was making a big deal and a big show out of "eating with the troops," I feel quite certain she was relishing the VIP treatment.
Meanwhile, the President served the troops. One report I read made a point of saying "he didn't eat." The point exactly...he went as a servant of those who serve.
Now some will say the President did this as a political stunt. Political? Certainly! But blatantly classy! Good job, imho...