does allingment change anything at all
There are certain (corrupted) actions that the MC can only perform with a specific level of Corruption, like polluting the Church's Fountain.
Your alignment doesn't change the way people treat you, your actions do.
In the case of the Mayor/Baron, your Reputation can give the MC and the women more time in certain quests.
You lose Reputation if you get caught in sneaking around in other people houses or rooms.
The only instance I remember where you need to do it is Julia's NTR path.
So, a certain n° in Alignment unlock specific actions.