You're assuming that wildfires cause damage always, most of those places you listed purposefully burn huge fires to create humus in order to grow crops to feed the overpopulated Earth. I was watching a off-road 4x4 channel where there were indigenous Australians setting fire a huge grassfields in Kimberly outback because that's the way their ancestors always did it and there was no other way to clear 14 ft tall grass in the entire valley.