Because it is a very string, stark, emotive word. It carries a lot of weight even sub-consciously, and makes it easier to get taken seriously (or taken as right). It makes it personal. Not just "something that could do to be fixed", or "right vs wrong" - it means "us vs them".
To an extent yes, though I think it is a concept that registers quite deep to the point where our reaction is at least partly instinctual (the old fight/flight response) to it'll not become totally ineffective.
