1. An inquisitor with the conversion inquisition uses his Wisdom modifier for Bluff, Diplomacy, and Intimidate checks.
2. The ruler of a nation in Kingmaker uses their Charisma modifier for bonuses to various rolls.
Would it be reasonable to allow the above-mentioned inquisitor to use Wisdom instead of Charisma for the ruler bonuses?
And if this has been answered before, my apologies in advance.
I think that is logical. The game assumes charisma because it is the default, and does not account for special cases. If you are using wisdom for your social checks then it makes sense to use it for Kingmaker in this case.
If you're the DM: sure, it's an option. I had this with a druid being my Grand Magister.. I however gave him a -1 penalty for not always fixing the INT/CHA problems with WIS.
If you're the player: ask you DM!