I think there was someone who was bitching here at one time, about ProtonMail handing out some user's account by court order. And they were trying to be snarky like "oh, guess ProtonMail doesn't care about your privacy after all!" or some shit.
And your comment here completely clarifies the differences about protecting privacy from enabling you to continue your criminal activity.
I myself cannot be 100% sure my privacy would be protected, if the service I knew, was having their door knocked because they knew I'm up to no good.
Your privacy is ensured from the likes of spam, advertisements and corporate eyes reading your e-mail. Not criminal activity.