I don't think it's about the money, it's more of a matter of capability and simply "caring". Regarding the latter: it seems that Apple has managed to build an organization where everyone knows that details matter and everyone identifies with their work.
Here's a wonderful example: two SMS, one from google and one from Deutsche Bank (who, at the time, probably had enough money to care about details) https://twitter.com/salzprojekt/status/707303168703602688
Both SMS have the same purpose: sending me a single-use login token. But only google thought enough about it to change the sentence structure so as to make the code visible without unlocking the phone.