As for public servants, that is exactly what they are, servants to the public
They are not to be political, but are to run the state in the best interest of the people and to the governments instructions
Have know a few high up public servants over the years who have seen many changes in government. ( funny how they all have told be basically that the" best interests of the people " and " government instructions' most always seem to clash )
When I was a public servant on the Railways, we used to joke that with every change of Minister, we got a new letterhead. And the end of the day we just went about our daily work without really giving a **** about who was in power.