I'm not saying they were wrong to authorize Lefebvre's raids (I'm not saying they were right, either - I believe it's a grey area, considering that the Antari would have done the same, and as you point out many people were suffering from the partisan raids.)
But I seem to recall that in Sabres, the MC does get to see what effects the partisan raids were having on the rest of the outpost, even if he wasn't personally affected, though I may need to replay it to be certain.
Anyways, that was mostly just meant to be an observation of the disconnected attitude of bureaucracies in general.
Except he isn't a complete monster. He lets enemy soldiers go when their deaths are not necessary for victory. He is genuinely concerned for the lives of his men. If you disobey orders, rush ahead, and manage to save the lives of some of his soldiers, he salutes you.
I'm not sure I understand what you're trying to say here.
And Lefebvre isn't? Aside from going behind his immediate commanding officer's back to perform actions that higher command would later approve of, is there a single instance where Lefebvres failed to carry out his orders or do his duty? From what I can tell, he served with distinction at Blogia, and RTI trusted him enough to plan out one of the most important assaults in the entire war.
And remember that Cazarosta is not above shooting you in the back (or in the face) if he dislikes you enough, even in the middle of a critical battle. He's only reliable if you're on good terms with him, or if you're having him do something that he believes is necessary.