Wait are now Cait's potentional romantic feelings the corruption or the temple to her god?
Because denying her your support in building the temple locks you out of many content including Kas corruption but opens a path for Cait deciding to become a kind of dedicated mom like Brienne.
But for this as Savin said you would need to make her breasts and hips as big as they can get which then Cait makes Cait thinking that the only to get even more like a mother goddess would be getting children. But the only person whose cittens she would want is the MC and only if the MC wants it because creating a rift between MC because of this is not worth it.
But this is only when you did not build the temple that she would be able to get this thoughts that lead her astrey from her religious path.
I think you misunderstand me. I am not saying every choice we make in the game that locks us out of content is corruption. The game has quite a few choices and some of them have no 'corrupt' or 'evil' choice. And some of those choices lock you out of content.
I am saying every time we encouter the Corruption the game actively encourages you to purify it, and punishes you if you fail to do so.
The instances we have of Kas' corruption are:
The Wayfort- No choices are made here.
The Hornet Hive- The correct choice is ALWAYS to purify it. You loose access to Azyrran if you corrupt it and gain literally nothing.
The initial Winter City Dungeon- This has 2 choices.
1)The Romance vs Rival one: (The Lore thus far supports the Romance path)
2) Jael'yn to Bar or Wayfort (The Bar has more scenes. Its VERY close though so if it wasn't for everything else I wouldn't notice.)
The Centaur Dungeon -The correct call is ALWAYS to purify the village. You loose access to a number of scene if you don't, with no benifit.
I can go on.
We have yet to have a single decision in game where "I am going to do the bad thing" has rewarded us.
At least with the temple example you give, an attempt has been made to make the alternative path attractive, even if its not ideal. When it comes to the games central plot the game very much has a preference.