Quote Originally Posted by KageTokage View Post
The white robes were just a sign of seniority for former Convocation members who chose not to return the star immediately after they retired.

And sure, if they had collectively agreed as a society to go through with the Sundering, then I would've been A-OK with it, but rather she simply decided she knew better then...basically everyone else because she didn't trust even her closest followers with the truth.
Nope it marks them as impartial and trustable advisors.