You have valid points but in my opinion I have to disagree since it's a different story compared to most other VN's/Games on here like it since most have how you put it "A horny guy" this is something different and unique of course you are entitled to your opinion as you are yours but if you don't enjoy this game then you don't, I for one enjoy this game and it's story.
Saying it's a "different story" doesn't mean it's a well written one. Same with saying that you like it. A lot of people like bad things. It's not a different story though. It is "a horny guy" just dressed up with a very small dollop of meaningless fluff which doesn't effect anything in the story itself. If any of that WAS relevant to the anything, then it would be different. That's why it's bad writing. Good writing does not have meaningless fluff. It's one of the first rules you learn about writing. Plot points and set pieces that do not serve the story (or gameplay as well as this is technically a game) should not be in there.
You can like the game all you want (I found it average overall), but by no metric can it honestly be said to be good, or even moderately written.
It's not wrong. You just ignored what I said about it. The corruption powers do nothing to the story. It's a dressed up save reload. It's a deus ex machina back up so that the story can go along the linear path the dev wants it to in case the player fucks up. It's not giving you an immoral way to play either because the corruption doesn't factor into any of the plots or dialogue. It all plays out the same no matter what.You get your corruption powers from the fairy so your statement about not getting powers from her is wrong plus the points about wowing them legitimately still happen if you do the right choices meaning there are two ways to play the right way and the immoral way.