I hope that liberal arts can be defended from many positions. The anti-knowledge is one; another is a conduit for the voice of Joe Schmoe, who does need to understand and hear that 'truth' is used to concentrate power in the hands of the few. We all do. University work is, by its nature, all-consuming and also de-localizing. I, as an academic, would like to be aware of this and be careful to act in academia and simultaneously act outside of the containment vessel that is the university, i.e. work in the local community, know my POI's articles, but also my university's investment practices; etc. This is Paulo Freire/Augusto Boal's pedagogy/theatre of the oppressed.
Perhaps there is a rhet/lit/comp of the oppressed? Thanks, everyone, for the ideas, and Mr. Trip for the radicalteacher.org link - gonna carry it over to the education side!