The Kerodin Doctrine:
Take no action that does not degrade the will or the ability of your Enemy to wage war.
Take every action that degrades the will or the ability of your Enemy to wage war.
Here's the original discussion from WRSA. Hard Things, indeed.
Make it too expensive and painful to be a Tyrant, and they will die or leave the field.
Breaking their Spirit and Will to fight is as effective as breaking their spines.
Sadly, your time for deep philosophical deliberation on the matter is, essentially, at an end.