There any major difference in pure vs full corrupt as far as content? Well, besides lacking it entirely.
I'm curious enough to consider making a second save file to play without being lewd, but if it's nothing major it'd be a waste of time.
I'm assuming the plot continues as it always does and the Pub/Motel/Townhall are in their own bubble, having more perversion doesn't affect anything major it just unlocks options.
I have seen dialogue choices grayed out though, I'm not sure if that's because I got too pervy or because they're just not implemented, one of the reasons I'd like to maybe restart and keep both files going as the game is developed.