Zon Kuthon is Lawful Evil not because of his domains (which suggest Neutral Evil more strongly), or even his church, but because the man himself is Lawful. When he was captured by the other gods after he first return from Beyond the Beyond, he _accepted their judgement_, and was willingly imprisoned for millennia, until the conditions for his release were met (the sun no longer shining on Golarion, thanks to the Earthfall). He is, in his own way, _honourable_. He has kept his deal with Nidal and the Horselords for ten thousand years, after all. He keeps bargains, and values deals and hierarchy, all Lawful traits.
