With the exception of NPR and C-span (at least in the US) that is not true. Newspapers and TV are in existence to sell advertising and make profits for their owners, which is why Jon-Benet Ramsey and Tom Cruise get more coverage than the U.S. Congress in many cases.
Most private entities (apart from chartered not-for-profits) exist to make money for their investors. HOW they do that varies. Some entities sell products, some sell services (e.g. wedding coordinators), some offer services (e.g. charities, government agencies) and we pay for those government services as taxpayers. Government is somewhat a 'non-profit' entity, it is overhead on society. The taxpayer pays for the government to exist, whereas the newspaper exists to make profit, as you point out.
Newspapers make their profit by selling newspapers, which attract ads that generate revenue. In contrast, car magazines make their profit by selling car enthusiast publications, which attract ads that generate revenue. Cops and firemen exist to offer services like maintaining law and order or protecting us and our property from harm.




