The FBI's mission is reasonably clear; it's a government-regulated organization; it's non-commercial. They have a certain amount of accountability. Alas, we can't say the same for "popular iOS developers". We've seen how sneaky some iOS app developers can be with respect to privacy, and with little remorse after they get caught.
(and yeah, I know this is probably going to hammer my HN karma all the way to the bottom but...lol man)