> Beyond the elite media he also identifies the prestigious academic institutions, which consequently are the source of elite media and business power, as a part of the apparatus that determines what’s ok to think.
These theories seem to start with the assumption that all ideas are equal, and what's 'ok' is arbitrary preference. We are dealing with truth.
High quality media directly check and corroborate facts; they use journalism to systematize delivery of truth. Quality research is about revealing truths - about nature, society, etc., systematizing it via scientific method.
Yes, humans fail all the time at truth, but they succeed all the time too. These institutions do a pretty good job, IMHO, and simultaneously a very flawed job that could be improved.