This is a fantastic comparison to draw, thanks for pointing it out. As in 40k, the actual good guys are in a constant struggle between their ideals and the harsh realities of life in the Courts, in this case. They’re on a knife edge, because to get shit done, to get to where their morals are guiding them, they need to make decisions and do things that are either against their morals or at least morally ambiguous.
I see where you are coming from in regards to the paladin and their tenets. I have trouble divorcing 5e paladin, from traditional notions ingrained in me from pathfinder and such. However, I am sincerely hoping that in the future we will see divine retribution on a grander scale. She was just a cog in their machine. He wants to break the entire machine. If that’s the plan, it will be glorious.