https://www.channel4.com/news/out-of-order-politicians-who-ended-up-behind-bars
Got to admit on this topic I exaggerated by not checking the source. For that I apologize.
But the basic premise that there are many MP's and ex MP's with convictions still stands as shown by the links below. Therefore my argument still stands. The list is by no means complete and if we believe Jim no lesser person than Ted Heath should be included (although Iam not in favour of this) The way in which our representatives try to hide their nefarious activities from the light of day further demonstrates their devious untrustworthy behaviour.
https://www.bbc.com/news/uk-politics-11688002

https://londonist.com/2013/06/top-6-politicians-convicted-for-traffic-offences not forgetting john Prescott for speeding and John Cruddas for driving without insurance.

https://www.chroniclelive.co.uk/news/north-east-news/mps-vote-keep-identities-secret-14931428
https://metro.co.uk/2013/03/11/after-chris-huhne-10-other-politicians-who-were-jailed-3536565/