Fair enough as far as you go..... but name the Auditors to give some perspective. 

Eskom accounting uses SAP (oh, dear) which supposedly won't permit payments etc without the customer being an Eskom vendor ( supplier) but, these computerized systems can be over-ridden by senior officials... a few of whom have been named. Oracle etc is similar to SAP's. 

The problem is, if most of the leadership of Eskom is involved with dishonesty, including ignoring problems or worse, then it becomes harder for the auditor to interrogate! Of course, this is where the auditor falls down if the partner fails to do his duty, even if the more junior staff see a problem.