User blog comment:B214/Volume 21 info & spoilers/@comment-26345952-20160711012832/@comment-24.113.252.213-20160711074139

You know, it's kinda funny. There are three things people should never talk about: Politics, Religion, and Abortion. But Highschool DxD is all about two of these things (thank god it doesn't include the third thing), and we're all talking about it so freely.

I love it XD

But I do agree with what you're saying. Although I'm sure Sirzechs and the others made preparations to ensure that the "New 7 Satan System" has more influence than Zekram Bael and his Clan. It's true that the Current (now sealed) Satans were just symboles the Old Generation Devils selected and used to keep the Underwold safe and functioning. But I think they are/were trying to pave the way for the New Generation Devils (Issei, Sairaorg, Vali, etc.) to shape the future of the Underworld.

Kind of an "out with the old and in with the new" sort of thing.