Thread:UtauSteam/@comment-24258073-20190712111031/@comment-24258073-20190712111544

If you look at the 1st part. It mentions the abilities that Administrators have that are also included in the smaller groups. Chat Moderator rights are automatically covered by Discussion Moderator rights. While Rollback rights are automatically covered by Content Moderator rights.
 * All privileges from the Discussions Moderator and Content Moderator groups.
 * Block users who are vandalizing the wiki from editing and other actions.
 * Grant and revoke both the Chat Moderator and Discussions Moderator rights.
 * Edit the community's skin and format.
 * Edit white-listed MediaWiki pages.

Also in the 3rd part, the fact that Administrators can grant and revoke Chat Moderator and Discussion Moderator rights has already been covered. I hope that you now understand, now that I have formally explained it to you.