Interesting topic, Mark. A bit of googling brought be to this, from the
Stanford Encyclopedia of Philosophy:
Quote:
What is ideology? The term was likely coined by the French thinker Claude Destutt de Tracy at the turn of the nineteenth century, in his study of the Enlightenment. For De Tracy, ideology was the science of ideas and their origins. Ideology understands ideas to issue, not haphazardly from mind or consciousness, but as the result of forces in the material environment that shape what people think. De Tracy believed his view of ideology could be put to progressive political purposes, since understanding the source of ideas might enable efforts on behalf of human progress.
Ideology today is generally taken to mean not a science of ideas, but the ideas themselves, and moreover ideas of a particular kind. Ideologies are ideas whose purpose is not epistemic, but political. Thus an ideology exists to confirm a certain political viewpoint, serve the interests of certain people, or to perform a functional role in relation to social, economic, political and legal institutions. Daniel Bell dubbed ideology ‘an action-oriented system of beliefs,’ and the fact that ideology is action-oriented indicates its role is not to render reality transparent, but to motivate people to do or not do certain things. Such a role may involve a process of justification that requires the obfuscation of reality.
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A key idea comes later in the article: “What is ideology, after all, but a set of values and ideals? However, on the ideology view, the norms are defined in terms of the interests they serve, rather than the justice they embody.”
The whole article can be found at
http://plato.stanford.edu/entries/law-ideology/.