Why do you think advertisers and the mass media are willing to donate their
creativity, time, or space to public
service ads or announcements?

Creativity can help brands to create a following, as well as promote their products. ... It turns out that many people believe that a brand is high-quality and worth their attention, simply because they're impressed by the effort that went into producing such a creative advertisement.

Explanation:

The advertisement is necessary to aware people about commercial and for availing profit. The media in the form of newspaper, news channel and radio utilizes the opportunity to advertise the products. The media obtains huge profit for advertisement of products. The media obtains the support for their telecasts.

an informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.