Perhaps the OP did not provide a link to any article regarding the "Motability tyre fraud" as it did not cost the motability scheme a penny. It was Kwik Fit who were defrauded by thier workers.
“They had already won the fleet contract and been paid for it, so it was simply a matter of logging it as a Motability job on the computer accounts. They were all earning between £180 and £200 each a month on top of their wages."
Source http://www.etyres.co.uk/news/kwik-fi...scam-4570.html