I'm puzzled by the question.
Sure, you can use them. But in regard to impact -- don't many corrupted blessings say something like this:
After you play this card, if the top card of the blessings discard pile has the Corrupted trait, discard a card.
Which often means that playing this card requires you to discard it and another card as well. That's pretty expensive.
About redemption: corrupted blessings are favors bestowed by evil deities. There's not going to be any way to redeem them, because the entities themselves are beyond redemption.