It's a vast topic as you realise. It might be useful to point you initially in the direction of Noelle Bisseret. Her main views are indicated in the following review by David Hogan :
Language and ideology
For Bisseret, the language practices of bourgeois societies are systems of
social discourses - social practices - that are ideologically structured and
embody within them social relationships of dominance and subordination.
She defines ideology as a "social discourse," not just a theory of the world, or
a set of values, but a "system of practices" at the symbolic level of social life.
The term "social relationships of dominance" "expresses a social relationship
between groups so that the one, the dominated group, is submitted to a system
of real constraints by the other, the dominant group, in the economic,
political, juridical and ideological spheres" (3).
In Chapter 3, these two sets of claims are elaborated and defended in an
analysis of the morphology and syntactic features of French. Drawing upon
standard histories of the language (Brunot, Bauche, Sainean, Gougenheim,
Frei), she describes first the development of a class discourse - bourgeois
language - in France from the beginning of the seventeenth century until its
eventual triumph - "hegemony" - both politically and linguistically, in the
nineteenth century. The "bourgeoisie expressed and imposed their world
vision by their manipulation of the language"(75). This bourgeois language
was characterized above all by an implicit individualistic metaphysics in
which "man" became "the center of reference for the defining and ordering of
other categories," thereby generating a demand for new linguistic forms that The grammatical subject, therefore, came into its own at the same time as
man became the referent for the social discourse . . . a new ideology was
being born ... among other social practices, in language practices. The
idea of the individual as subject did not get under way until the eighteenth
century, but the notion that history was made by active wills had alrea
the bourgeoisie or its linguistic agents, the grammarians, were able to dictate.
The grammatical subject became articulated and assumed a preponderant
position in the sentence; personal pronouns replaced collective pronouns;
verbs ceased to be passive and reflected the creation of history by active wills;
the idea of logical analysis appeared: compulsory word order within phrases,
in which the subject came first, reflected a hierarchy among words, corresponding to the new rationalized hierarchy of social class of bourgeois society.
Bisseret concludes:
The grammatical subject, therefore, came into its own at the same time as
man became the referent for the social discourse . . . a new ideology was
being born ... among other social practices, in language practices. The
idea of the individual as subject did not get under way until the eighteenth
century, but the notion that history was made by active wills had already spread through the bourgeoisie at the same time as it had read possibilities
to exercise power (76).
Bisseret argues, however, that among the "dominated" classes different
language practices appear (whether they might have simply persisted from
the Ancien Regime is not considered). These practices reflect their subordinate position in the society, and are characterized by a speech form "more
centered on a process expressed by the verb, on a representation of an action
taking place here and now, which is experienced as much as acted out by an
anonymous and collective whole"(75). Only the dominant express themselves
as subjects of their speech and organize their language around the subject, the
self, the speaker's person, "which coincides with the I of the social referent."
In the language of the dominated, on the other hand, the world is not
organized in reference to the speaker's I; sometimes the possessive pronoun is
left out, sometimes the possessive pronoun of the first person is replaced by
that of the third. Whereas in the language of the dominant, the subject of the
verb is accorded the central position in a phrase, in the language of the
dominated the subject of an action fades into the background, leaving the
process expressed by the verb. It is a language which "decenters" the subject. (David Hogan, ' Education, Class Language, and Ideology by Noelle Bisseret', Language in Society, Vol. 9, No. 3 (Dec., 1980), pp. 393-398 : 394-5.)
Language, ideology and moral values
Nicholas Abercrombie and Bryan S. Turner refer (admittedly sceptically) to :
the conventional view is that there was a dominant ideology which infected the working class. It is suggested, for example, that individualism, especially as expressed in the doctrines of the British utilitarians,
was the key component of the dominant ideology of the bourgeoisie and
penetrated all features of bourgeois political economy, morality and
religion. Bourgeois political economy (laissez faire, the night-watchman
state, the individual conscience) is usually regarded as the dominant
ideology of a social class which was economically and politically triumphant after 1850.
(Nicholas Abercrombie and Bryan S. Turner, 'The Dominant Ideology Thesis', The British Journal of Sociology, Vol. 29, No. 2 (Jun., 1978), pp. 149-170 : 155-6.)
In my view Abercrombie and Turner are unduly, dismissively sceptical but that is a issue for another time.
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Reading
Noelle Bisseret, Education, Class Language, and Ideology, Published by Routledge & Kegan Paul Books (1979) ISBN 10: 0710001185 ISBN 13: 9780710001184.
David Hogan, ' Education, Class Language, and Ideology by Noelle Bisseret', Language in Society, Vol. 9, No. 3 (Dec., 1980), pp. 393-398.
Nicholas Abercrombie and Bryan S. Turner, 'The Dominant Ideology Thesis', The British Journal of Sociology, Vol. 29, No. 2 (Jun., 1978), pp. 149-170.