What's the point in whistle blowing when you can't blow the whistle? I've always called bullshit to those whistle blowing hotlines.

Who's really going to go after a mega corp-entity when they do $bad? "Whistle Blower" is like an oxymoron to that the likes of "Friendly Fire".

Because whatever Sarah reports in that book is probably not an actual crime. Look up Whistleblowers act for reference.