It depends on what you want out of the story, I guess?
The story necessarily makes a statement about her traits and especially her “skewed” morality by the consequences of events and people she influences.
If she does not change, you’re making an even stronger statement. If there are positive consequences to her actions, you’re condoning her worldview. If there are decidedly negative consequences but she still doesn’t change, that’s something more complicated and maybe more dangerous.
Paradise Lost is often considered the first satanic work even though Lucifer’s actions have negative consequences in the story. I’ve seen more than a few people with “better to reign in Hell than serve in Heaven” tattoos.
Short answer: It can be done. Just know everything in your story makes an argument, and we should be conscientious of our textual arguments as Christians.
"...the one with whom he so sought to talk has already interceded for him." -The Master and Margarita