User blog comment:IamJakuhoRaikoben/Chapter 474: In the Moment of Complete Silence, Review./@comment-73.173.42.152-20160224130450/@comment-7418318-20160224152636

You misunderstood something.

Crime Sorciere's main goal is to atone for their crimes. Defeating Zeref is the method to achive their atonement and will also prevent others from having to go through the same thing they suffered.