Role Categories [SUGGESTION]

I dunno if this has yet been covered here, so please forgive me...

I've been thinking for a while now (pretty much since channel categories debuted) that it'd also be nice to have role categories. Say you have different rankings for moderators, you could have admins, moderators, and probies, but they'd show in the sidebar under just one "Staff Team" category that wouldn't require the extra role to be assigned to each individual member. Or "Content Creators", for YouTubers, Twitch Streamers, and Mixer Streamers. Or "VIP's" for the roles family, friends, and donators.

Again, this would be done simply so that instead of having to create extra roles that have no actual purpose beyond organization, multiple roles could be grouped together. Each role could be setup the same way that they already can be, or have synchronized permissions for the respective role category.