We trust a lot of organizations to not do illegal things to us. It's not really any different with Apple. You're trusting that the computer you're using to post your comment doesn't have a hardware back door in it. Except I'd argue that the incentives for Apple to do this are less than they would be for other companies. Not blind faith.
No, it's blind faith. Trust is a synonym for faith. If it makes you feel better, you can say blind trust, I'm okay with that.
And you're correct there's a lot of shit I must blindly trust, too. That's bad. That's not a refutation of my point, you're actually reinforcing it.
We've forced ourselves into a situation where blind faith in moral actions is required to function in society. That is ripe for abuse. Which is probably why we see it abused every day.