The Corse don't care much about forest and macchia fires as long as they don't get close to settlements - that's not unconcern but realism. There are just too many of them to fight them all, and the terrain is mostly impassable, so extinguishing is limited to aircrafts. The old "Canadair" aircrafts are expensive toys, one flight hour costs about 20,000 FF! These old rattletraps are fueled with petrol, not kerosine, and they consume quite a lot of it; their capacity is limited to 5,300 liters (1400 US gallons) of water.
For the pilots, it's a hard job to do: the cockpits are not air-conditioned, and they don't have instruments that would allow them to navigate in the smoke.
The fires are the main reason why camping is generally prohibited in
Corsica (except for camping sites and near refuges). It is not only to
stop people from starting camp fires but to have them sleep in places
where they can be found and rescued in case of an oncoming fire.