If Satan was their savior, he would've saved them from death, either way. If you keep quoting the Bible, you'll see.
You have to use something else, because the Bible doesn't say anything like you're suggesting. So we can't use the Biblical Satan.
What other Satan do you have? Determine him, then we might be able to answer questions about him.
How about the satanic bible? Can't find anything else at the moment
1. Satan represents indulgence instead of abstinence!
2. Satan represents vital existence instead of spiritual pipe dreams!
3. Satan represents undefiled wisdom instead of hypocritical self-deceit!
4. Satan represents kindness to those who deserve it [not] love wasted on ingrates!
5. Satan represents vengeance instead of turning the other cheek!
6. Satan represents responsibility to the responsible...!
7. Satan represents man as just another animal...!
8. Satan represents all of the so-called sins...!
9. Satan has been the best friend the Church has ever had...!