They are just 'working within' to topple the EU by highlighting it's alleged gravytrain, by taking a first class ticket on it with second helpings.
obvious innit lol. 
The facts are that you don't know how they spent certain allowances because despite Farage boastfully claiming he would welcome an independent audit of his expenses and allowances,he later 'reverse ferreted' on that promise, stating that he thought it would unfairly single him out, despite other parties, including Labour, signing up to such an audit.
Of course one might also be a tad cynical and suggest the best way to highlight a perceived 'problem' is to throw light on it, not tainting yourself by participating, and shoving your nose further in the trough and then when caught, claiming it was all for the good of the country
I fully expect if they decide to rob banks to finance ukip after brexit, they will be maintaining they were just doing it to demonstrate the lack of security for the depositors, not for personal gain, obviously.
And talking of illegality and notoriety I guess some or all of the following were just trying to bring down the EU from within to draw attention to possible corruption eh, and should be applauded.
Former ukip MEP Tom Wise,an ex policeman who pleaded guilty to charges of expense fraud and was sentenced to two years.The trial judge said Wise had set about to deliberately defraud the EU almost as soon as he was elected.Obviously the judge failed to recognise his valuable work in exposing the bigger picture
Or former vocal critic of EU fraud, elected ukip MEP later non-iscrit Ashley Mote who was also jailed for fraud, who the judge described as 'truly dishonest' over some half a million fraudulent claims. Or Nicky Sinclaire transgender former ukip MEP charged with expense offences, and later acquitted. Her defence was that of negligence/or deliberate falsification of documents after a very bitter dispute with Farage and divorce from ukip who she accused of deeply offensive homophobic, racist views and malpractice
Her former office aide, Ison a ukip worker admitted sending an email re Sinclaire about her which said 'ok plan B -fraud'
Or Janice Atkinson MEP who was expelled from the party over allegations of expenses fraud, but still sat with Farages consent in the EFD group
Then there's the ukip member who subsequently defected to the Conservative party the company he ran was allegedly raided over allegations of the use of 7 illegal immigrants and expense irregularities
another delicious irony perhaps?
Then there's the EU investigating ukip over some alleged £400,000 of misspent election funding of its own party
Maybe the £15,ooo a day cost of Farage's own personal bodyguards paid for via the taxpayer and so essential to make sure he has 'refreshments' and to hold an umbrella over his head on every sunny day. Despite a police presence but with not a single protester in sight, in premises used amongst other things as a strip joint.
Vital to keep ones eye on the bigger picture wot
LOL
http://www.independent.co.uk/news/uk/politics/nigel-farage-electoral-commission-european-parliament-...
http://www.dailymail.co.uk/news/article-3008601/Ukip-Euro-MP-expenses-fiddle-axed-High-profile-elect...
https://www.theguardian.com/politics/2016/jul/11/former-ukip-mep-nikki-sinclaire-cleared-expenses-fr...
