The monsters attacked if they saw you first. These aren't harmless animals, most of them. Wild, feral creatures do attack you first - a lot of these creatures are nasties. If you turn your gambits off, your characters run straight by enemies - they'll often chase you however. You don't have to kill the neutral ones. So, don't do it if you don't want to.
Uh, what does the battle system have to do with the storyline? Wait, I get it XD. To each their own
Uh, what does the battle system have to do with the storyline? Wait, I get it XD. To each their own