Language can be manipulated without conscience for ideological agendas and power struggles. Indeed, the law can be a postmodern narrative. The ends justify the means when power is the ultimate objective. Political correctness silences opposition. All people are assumed to be hiding aspects of their character and presenting themselves as an 'act'.
Perception is reality.
A social group and its language create individual identity. Scholarship is reduced to rhetorical manipulation. We live in an era of ubiquitous media and images with diminished time to think beyond sound bites. As busy people, we are awash in 'marketing' which uses many techniques similar to classic propaganda. Words, their definitions and semantics are important.