In my view, deciding how to live one's life isn't really "that simple". It requires learning and thinking conscientiously. "Inerrancy" (again, this is just my view), leads one down the proverbial primrose path, causing one to ignore that need for reasoning.
At it worst, we find that good people usually do good things, while bad people can do bad things, but to persuade good people to do bad things requires that lack of reason, whether from religion or some totalitarian ideology.