User blog comment:B214/Volume 21 info & spoilers/@comment-26345952-20160711012832/@comment-26709288-20160711070909

Of course those things matter but Diehauser is already accomplished in both areas. I mean sure, he can pursue to be better in politics but it seems to me he already won in both areas.

Being a Satan is literally just a powerful title, I feel someone like Issei, Vali, and Sairaorg need it because all three of them are lacking when it comes to political power. Despite being a heir, Sairaorg isnt really influencal and some devils still look down on him for being a Bael and not posessing the power of Destruction.

Being a Satan is just a strong title but for someone like Diehauser it's not really needed. Zekram Bael has more influence than the 4 Great Satans did, the Bael family will most likely continue to have more influence than the Great Satans considering their family is the Great King family. So for someone like Diehauser who already has so much political power, strength, the nickname Emperor, it just seems like something he doesnt even need. Unless the influence the Great Satans have gets heavily reformed (unlikely since so far, devils seem to value blood over anything else) it just seems pointless for Diehauser to pursue. Zekram even says the Great Satans are nothing more than symbols.