I really don't think it should be an out and out mega dungeon. While neat, eventually people will find the "right way" to beat it even if it's randomized. I would imagine it more focuses on separating those merely uphold a virtue/porfolio aspect/etc. from those who find them as integral a part of them as breathing. It takes more than just being a good fighter to become an aspect of war, it takes more than just being good to become a god of good. They need to powerful but I don't think that's the extent of it.
