Do you also think that in these present times, the job of this prime minster based on his lack of achievement with brexit and his inept handling of covid, means he deserves such a huge plus in salary compared to a nurse.

Yes!

Someone, at a pay grade above that of the nurses, needs to ensure that nurses are available at every hospital, and that the flow of nurses to different hospitals is maintained.

Someone else needs to ensure that the government coffers have sufficient money to pay the nurses.

Someone needs to be able to obtain PPE and vaccines in a time of global shortage. They also need to be able to access government (our) funds to pay for these things.
In order to have the funds to buy PPE & vaccines the country needs to have a continuing and effective treasury/economy.

The Left are happy to blame everything on Boris, saying that it is all his responsibility. If the responsibility is his, then the pay should be commensurate with that level of responsibility.