As the majority of these workers in Libya are not paying UK tax, and are working there of their own free will (and for the money!) anyone know if they get charged for these rescue flights? After all, whilst maybe not quite the same, if Joe Bloggs gets injured on holiday without the required travel insurance he has to fund his own casevac back....
As someone who has in the past worked overseas, along with many other expats, we may not have been paying UK tax, but our money was largely spent in the uk, on homes etc. There are many people working overseas "tax free", who are supporting their families back in the UK. I had to go overseas after leaving the RAF because I couldn't afford to buy a home in the utopian UK. I met many people who were sacrificing time at home with their families, in order to provide for them.