Think it's to do with him getting his knighthood for services within the banking sector which, as he obviously goosed it up means it needs to be rescinded.
As for Archer, his criminality was for perjury which wasn't connected with how he got his peerage. So no reason to have him defrocked
Archer server his time for perjury, he's paid his dues, and should not be punished further.
Blair perjured himself on numerous occasions, but was never brought to task.
Archer server his time for perjury, he's paid his dues, and should not be punished further.
Blair perjured himself on numerous occasions, but was never brought to task.