If keeping these companies running is so important to public interest, why aren't they receiving public funding rather than relying on money given to them by shady third parties with their own political interests?

I also fail to see how these particular networks owned by international multinational corporations are really any better than any other international multinational corporation like Meta. There is just as much misinformation on Channel 7, for example, as there is on Facebook, and the fact that often that misinformation is communicated as news, therefore making it seem more trustworthy, makes it a lot worse.