User blog comment:B214/Question and Answers 2/@comment-187.209.0.247-20140225185340/@comment-1359322-20140225235034

I guess i could play a part in this.

Overall it's about how the Devils and Fallen Angels are viewed, since Devils and Fallen Angels are viewed as "evil beings" from the start, they still won't be viewed kindly, take Azazel for example, ever since the introduction of Khaos Brigade, he has done many deeds but still he is not fully trusted reason the Bible wrote him as evil, he is viewed as evil by others.

It's the same to Issei and his Devil friends, they are written as evil in the Bible and are viewed as evil by others, take Abe for example, she even thought that Rias would take her soul, that is how Devils are generally viewed and unfortunately it can't change.