Sorry I cannot feel sympathy with this woman. I don't care if she is a pensioner, and if she is being DRAGGED through the court while they CLAW BACK the money!' (As that news item says on the link given!) Fact is, she has exceeded the savings amount, and has actually saved £32K, not £22K as was first stated!
As a few posters have said, something does not add up.
DH used to have a friend (an ex colleague) who gave up work ten years ago, at 56, and went onto ESA and DLA. (She had anxiety and depression.) Divorced woman, 2 adult children in their 30s. She had her rent paid, and council tax etc...
For a good 5 years, she went on holiday (abroad) every 5-6 months, every time we saw her she had a new outfit/handbag/shoes/hairdo, she got a 3 year old car (on finance, but still £200 a month,) and she had her house PACKED with new tech: a £2000 telly, a £750 hi-fi, a £400 mobile phone, and SHIT loads of goods from a shopping channel and various catalogues and online shops. Like 100s of pounds a month.
We struggled to fathom how she could afford it all. Then all of a sudden, 5 years after she gave up work (at DH's place,) and started the benefits, she was hauled into court. Apparently, she had been working 3 days a week in a little shop in her market town, (since 6 months after she finished working at DH's place,) whilst claiming the full benefits, and she also had £36K in a savings account in a building society.
She was charged with defrauding benefits, and owed over FORTY FIVE THOUSAND POUNDS in overpaid housing benefit, council tax benefits, and ESA. I don't think the DLA was/is means-tested, so that was not included.
She got a 2 year suspended sentence, and was ordered to pay the £36K she had in the building society, and the remaining £9K had to be paid in instalments. AND all her benefits were stopped! This was one and a half years ago, and she still owes £7K, and all she has done on the few occasions we see her since, is continually moan about how 'poor' she is now. She has even asked friends, family, and acquaintances for money on a number of occasions.
She asked me and DH back in April, if we could loan her £500 for car repairs. I said we are brassick, and have no extra cash, and she asked if we could take it off our credit card to lend her.
Cheek of it!
We have avoided her since. 
I am not saying this woman (that the OP is about,) has defrauded anything/anyone, but it is as suspicious as fuck!