It's true that I am not aware of the details of the gvmt jobs, but wouldn't they still follow, even if not so flexible, the basic laws of the market rates? e.g.

It's true that I am not aware of the details of the gvmt jobs, but wouldn't they still follow, even if not so flexible, the basic laws of the market rates? e.g. if you are a nurse in mainland and get offered a 2000euro/month in Ibiza, but a house on its own costs much more (I wouldn't even dare to guess a whole summer month price TBH), you would decline that job. And everyone would do so, forcing them to raise the pay until it meets the needs, or have a shortage.