They matter between companies, but the pop up is an end user interaction, which also matters.
The topic is a anti conpany to company, and a milder consumer interaction event.
The situation between mozilla and google is pro conpany, but can be seen as more anti consumer as it has a default.
Treating the dealing between companies and consumers as one single entity is not a good way to look at it. By that logic, ISPs are good companies because they coordinate to not compete agaisnt each other when of course that is far from the case. Yes they do matter, but how the power ends up in the consumers end also matters.