Could Civil Penalties Be The New Benefit Sanctions As Jobcentre Staff Hand Out Fines To Cover Their Own Mistakes?

Job Centre staff are able to fine benefit claimants who have committed no crime, and based on the flimsiest evidence (which may or may not be accurate). Why does the DWP, and the Coalition government, believe it is justified in bypassing a centuries-old, tried and proven legal system for one that harasses people who are entirely innocent of criminal behaviour?
In short, who are the real thieves?