Barclays investors may reflect that Jes Staley’s business judgement is a good deal sounder than his personal judgement.

The scandal over his relationship with disgraced financier Jeffrey Epstein – the second big blot on the landscape during his time as CEO – continues to cast a long shadow.

Against that backdrop, his dogged defence of Barclays Investment Bank could serve as the core of the case for the defence when the history of his tenure at the top of the institution is written.