Attention to detail.
Dorries completed school and trained as a Nurse. She was selected for Mid Beds as an MP as the party wanted a female candidate (she lies about this and claims it was based her performance and merit). She was notorious for taking money for not doing things (member of the Innovation, Universities, Sciecne and Skills Committee and attended 2% of sessions - the committee reformed and she failed to attend any sessions). She "employed" her daughter on a huge wage as office manager even though her daughter lived 100 miles from the office and recruited her sister as "senior secretary". She ran for election in 2015 and deliberately used character assassination. She fiddled her second home allowance, claimed £10k for a report that was never seen. She put the Commons logo on her blog to imply parliamentary endorsement. She then stated that her blog was 70% fiction when she had been claiming it was all true - leading to suggestions she had been deliberately misleading her constituents. She bunked off parliament to do I'm a Celeb and broke the Minister's code of conduct. She tried to get away without declaring the fee and failed. As Minister for Patient Safety she was the first MP to get Covid and failed to self-isolate. She also started retweeting doctored videos from the far right. She deliberately got Facebook to censor an interview with a British Ukranian soldier. She took on the brief of Secretary of State and failed to understand how Channel 4 is funded and made up that a reality show she did in 2010 used actors (it didn't). She sulked when she wasn't elevated to the lords and took it upon herself to try to undermine British democracy by interfering with the Commons Priveliges Committee investigation into Boris Johnson. She did not hold a surgery in her constituency of 3 years and said she would resign - she failed to do so, failed to do any work and didn't resign. She was kicked out by being appointed Steward and Bailiff of the Three Hundreds of CHiltern.
So - Dorries, workshy liar, expensed fiddler and Boris Worshipper. She was duly discussed at length due to her fecklessness, slavish devotion to Boris and tendency to lie and fiddle expenses.
Rayner has proved to be a fairly decent and honest MP. You may not like her, you may not like her party, but it is undeniable that she has been a good MP. I put her in the same basket as Jess Philips and Anna Soubry.