Would those who object to MPs' 'perks' prefer to see nobody have more than a basic salary? If so, how far would that go?
Should everyone be restricted to the legal minimum of holidays, for instance? Is it fair that not everyone gets the same amount of paid time off? Is it hypocritical of those with lots of holiday to go to (eg) a hairdresser who is paid less and still gets less than half the time off and expect to be served, or should we all have the same number of weeks as holiday?
Or mileage allowances for those who use vehicles as part of their work? Or train/plane fares and hotel bills if people are away from home on business? Is it wrong for those to be paid on top of salary?
Should we all contribute to the heating bills of our workplaces? That would be tricky to work out for people with jobs like mine, which required me to be in different buildings at different times of day, although my office was on a centrally controlled heating system, so was heated all day. Still, I suppose one way of thinking would suggest that I was saving on my bills at home by sitting in my warm office.
What about people who live in homes that are owned by their employers? Right to buy has seen the numbers shrink, but there are still school caretakers, vicars and others who have a 'tied' house. Should that be stopped as there is a housing shortage?
BUPA membership? Discounts for NHS workers? Apple Education discounts? Costco membership😉
Obviously anyone drunk or partying at work would expect to be fired (wouldn't they?), but if someone is caught printing a knitting pattern on the office printer, should they be forced to resign? Or using the internet to post on FB (or GN)? What about charging your phone in the office?
Much of this is accepted by most, as it it recognised that different jobs have different requirements and different benefits. Also, in many cases people use their homes as well as their workplaces for their employers' benefit. I was often up late (using my electricity and heating) on my own laptop, using my internet connection to work, and would print things ready for the next day. Of course I should be able to charge my phone at work and use the internet when I had a break, or come in a bit late if something was happening at home and I had no time-critical commitments at work. If my colleagues and I had stuck rigidly to contract things would have been very different, and would have worked against the employer, which is, no doubt, why they were happy for things to continue as they did.
I was briefly a civil servant in the past. We had a heavily subsidised canteen, which wasn't uncommon. People used to get luncheon vouchers - are they still a thing? My sister currently works for a commercial organisation who offer subsidised food and free parking (via an agreement with the local council). Is that corrupt?
My point is that many people have employee 'perks' which might be given as incentives, might be for operational convenience, or for all sorts of reasons. Why should MPs be any different?