Answer:
School, mass media, interest groups, and religious organizations are makers of public opinion, that is, through their doctrines, teachings or transmissions they influence the opinion of society, shaping it according to their convenience and determining the topics and themes on which society will debate and give opinions, thus generating points of collective interest, which may refer to topics that opinion makers are interested in being treated.
Thus, the news networks that belong to a business group can encourage their followers to consume a certain product manufactured by that same business group, or religions encourage their followers to attend different celebrations to obtain an economic profit.
In short, in many cases opinion makers shape the public opinion of society at their convenience.