I believe this captures a great deal:
>"It is not necessary to construct a theory of intentional cultural
>control. In truth, the strength of the control process rests in its
>apparent absence. The desired systemic result is achieved ordinarily by a
>loose though effective institutional process. It utilizes the education of
>journalists and other media professionals, built-in penalties and rewards
>for doing what is expected, norms presented as objective rules, and the
>occasional but telling direct intrusion from above. The main lever is the
>internalization of values."
>
>[P.8, Herbert I. Schiller, CULTURE INC;
>Oxford, 1989. ISBN 0-19-506783-5]
>
Brian McAndrews