I pretty much guarantee that they understand that they need to do their job, but they do not "enjoy" doing it. Anyone who has been in combat will tell you the same. (All wannabes will tell you that they love combat - the hallmark statement of a neverbeenthere).
Some of the vets here on FR say they'd love to get back into combat (SOME, not all).
Amen Bro
Nam Vet
Nam Vet
Don't go betting your home on that. Ever heard of a "adreneline junkie"?
The less "emotion" of any type one had the better off we were. But to fight in combat without emotion is damned near impossible.
The really spooky guys were the ones that when you looked into their eyes you only saw a bottomless pit. Unfortunately some of them came home and for years, sometimes forever, never again found their souls.
No you are correct, combat is not something to find enjoyment from and damn few pros do, and yet the real pro's are ready, by virture of their training, to answer the call, whenever it comes.
May God Bless those who answer the clarion call without hesitation ... America's Finest!