His grand reputation was a fantasy created by the powers that be who actually wanted a guy that could get things done for them no matter how unethical the process needed to be.
If the justice department thinks that Muller is so grand then all it proves is that those in the justice department who were involved with this process were just as Dirty as Muller.
I don’t think those who died in prison in MA despite being innocent because of Mueller suppressing evidence in order to protect Whitey Bulger thinks he has such a grand reputation.
"I'm still sharp as a tack."