I mean Google has a monopoly over video sharing. If they wanted to they could threaten to blacklist these companies from all of googles services. Companies like Coca Cola wouldn't really have a choice at that point since that would be cut from such a massive market that they would do anything possible to get it back. Instead google is punishing what are essentially their employers which is going to end up hurting them in the long run. Less varied content = less activity on youtube = less eyes on the site overall making even less appealing to advertisers.
Google needs ad money from all sources, but companies like coca cola need viewership from certain groups. its mutually beneficial for google and coca cola to strike up a deal that says that coke will pay for views on the videos they want. google blacklisting coca cola because they wont pay enough is mutually detrimental. it means google loses income from coca cola and coca cola loses viewership from their star demographic. its in neither of the company's interests to threaten each other with ad money, when they can just come to a selective deal that benefits them both but hurts like 5% of all the channels on youtube that arent part of coke's ad demographic
If youtube paid literally nothing then you would get a scenario like the mid-late 2,000s where all these prominent content creators had their own websites instead that they posted content too.
it'd be incredibly decentralized and the view distribution would be incredibly forgeted. right now theres a general balance of youtube channels receiving views because related videos will show up in your suggestion list so you'll find videos that are similar to your tastes. if you have a gazillion separate websites as channels 0.3% of them would have like 5k views or above, and viewers wouldn't be able to find similar videos unless that website suggested other similar websites, which already is hard to maintain individually.
youtube connects all channels by sharing similar results and results that other people watch. most of the time when you browse youtube you'll watch one video, then see an interesting one show up in suggestions, watch that one, etc. until you've watched like 30 different videos. it will distribute your views evenly among different videos and channels
anyways youtube wont ever cut out all payment because of course that means they'd lost all of their content creators at once. but they definitely dont have to dish out generous amounts either.