Apple doesn't give a s* about your privacy. They claim to give a s* about your privacy. Those are different things.
If you want this to change you have to get involved with legislation to change the rules/law. That's the only option. None of them "care" about you or really anything, because they aren't human. Companies respond to changes in the law which bound the approved set of behaviors. That's it.
EDIT: I got the budget wrong. Changed that.
However, I highly doubt that government and enterprise purchases make up a large share of Apple's income. And consequently I'm convinced that news of a backdoor in iMessage would cause Apple way more financial damage than these things did to Microsoft: https://news.ycombinator.com/item?id=5728294, https://www.scmagazineuk.com/skype-backdoor-missed-by-micros... https://www.theguardian.com/world/2013/jul/11/microsoft-nsa-...
And the more Apple doubles down on protecting its users, the bigger this financial incentive becomes. Of course that doesn't stop me from supporting better legislation (GDPR was a great start).
Corporations only exist as legal constructs. I'm not trying to be pedantic. I'm just saying that it is always going to be the case that a business, any business, will work within the law and with lawful government because they ultimately depend on contract and property law.