In other words, you want it to be more like Campaign from FFXI where you were fighting against the Beastmen forces for control of the area and every week the campaign map would change depending on who had the most influence in that zone based on battle wins and losses.
I always loved Campaign, but the thing is, although sharing similarities with Campaign, FATEs just aren't about fighting the beastmen, they also include NMs which are often just monsters plaguing the countryside, or something as mundane as stepping between a drunk and another patron he's hassling, or, in one humorous FATE, escorting a courtesan to her next client.
And FATEs do fit the overall theme of the zone - for instance Odin spawns in the South Shroud because sidequests revealed
that's where he had been sealed centuries before by Urth the Allagan sorceress and technically where he is still bound to
. La Noscean FATEs often involve desperate land-locked pirates harassing travellers. Black Shroud FATEs may involve assisting the Wood Wailers in fighting poachers or animals deemed by the elementals as harmful to the forest. Ul'dah FATEs often involve fighting marauding monsters or assisting miners or helping refugees. There is definitely a connection with each FATE to the zone they spawn in.
Unfortunately, because certain FATEs can be exploited by exp parties (*cough cough*, Dark Devices), it's given the whole FATE system a bad name now, which is a shame, as I really enjoy the system.