So there is a point where giving someone 10k take home pay rise costs the business much more than giving a frontline worker a 10k take home pay rise.
But an EV car in the UK is taxed 98% less than the same amount in cash.
Rest zones, work from home etc have 0 tax implications .
Arguably lower paid staff is better off getting the cash instead of the benefits and using it as they see fit
Edit typo
I know I recently began paying tax on employer provided health insurance for example.
Edit:
I think it is better explained here:
https://electriccarguide.co.uk/what-are-the-benefit-in-kind-...
Under those conditions tax free benefits like working from home (convenience and not having to pay expensive train tickets) can be a nice topping to a modest salary increase when moving jobs.
(Numbers approximate)