They care about it enough to forego the easy route of taking all my data and emails to shove into Siri and everything else, so. Obviously they care about it somewhat. Google links to and makes money off of search engines and advertising on all sorts of shady and awful sites but I don't see people saying that they support all of those things.
I get that some people like you would be happy to give up what's left of your privacy, but people like me and others are not. You at least have a choice of another provider to go to, we wouldn't.
And when you search the Internet who do you use? Because all search engines will be collecting that data, Apple is great at marketing, there why I don't really listen to these pointless sound bites from them as that's all they are, marketing phrases to make you give them money. This site will be making money of advertising, that's a ridiculous argument to make.