Okay look, I do get what the author is going for here. A redemption for Victoria to show Raoul (and us) that even though she did horrible things, she's a product of her upbringing (and the goddess' influence.)
Here's the thing......
It is far too late for this. Raoul has repeatedly been shown not to give a damn about the factors that lead to damnation, just the acts the person has committed. One could objectively say each target of his wrath thought they were in the right all along, and then this whole revenge manga gets twisted. Victoria may have been influenced, but she didn't appear to have a single shred of remorse until after she had been repeatedly tortured beyond human levels. That's not really remorse, that's fear of repercussions.
Again, I get the lesson, but this is like saying a genocidal general should be looked at in a better light because they were abused as a kid. Cool backstory, but ultimately just filler.