The Tesco idea is a very good one, and let's take this a little further and look at Tesco's question of accountability. For example on the Horse meat issue.
Once this became a real public issue, they walked their way back down their accountability trail, found the problems, admitted where the processes were wrong and fixed it for the future - because their customers can go to Asda or Morrisons quite easily..
Using your time machine, let's go back to approx 2011 when the scandal about the parents of the dead student were sent a letter from SIMS threatening them that their deceased child could not go to the Prom unless they improved their attendance.
Unfortunately though that one issue was fixed in the SIMS system, as the customers could not switch to the other suppliers so easily, all the other letters and instances where parents will receive other letters even though their child had died that could be fixed were identified and not fixed - because it does not make commercial good sense to fix them in the full profit model.