I can agree here. My trooper, Ian popped up on my last list with ~10 minutes until reset. I saw that his point total put him just barely into the top 100, and therefore made sure not to hit him. It's just what troopers do. If you see a trooper near a threshold for a higher reward tier on your list, you avoid attacking them out of respect and loyalty, as you'd want them to do the same for you.