After all, Google can't really do the differential privacy stuff to the extent Apple does due to their reliance on ad revenue - which is only so targeted because they collect it in the first place, giving their Ads customers (businesses) more opportunities to sell to.
Netflix wants to build viewer profiles of its users, so gathering that data in a way that they can ID helps; Amazon will do similar things to suggest purchases based on your history.
As a card provider for the general public, Visa kind of has to play ball and even then, their customers are merchants and financial institutions that issue cards.
Given enough size - think FAANG, or really any financial institution - Apple probably can't reject them for shady behavior, but can always work to build guardrails to prevent the worst offenders from going off.
Particularly after reading the memos which came out in the Epic lawsuit, I can’t tell how much all of this really is about privacy. Or how much privacy is just cover to take a cut of the profits of Netflix, Amazon and visa by controlling access to our phones.
The privacy argument probably has some truth, but it seems suspiciously self serving for Apple.
I think there’s plenty of ways apple could preserve my privacy without taking such extreme control of my device. A simple answer would be to give banks direct access to the NFC chips on the condition of user privacy. And cut them off if they violate that policy rule.
I don’t think it’s a coincidence that apple’s chosen solution just happens to be the one which maximises their profit.