I suppose it depends on whether you're playing Traveller as a sci-fi adventure game in the far future, or as a sci-fi war-game in the far future: I tend much more to the former, and so only ever use morale for NPCs.
I have to admit, I like polls like this where the answer I pick is not the clear favorite. I then spend time questioning why did I go down the road less travelled. And how did it impact, if at all, my past games.