What recourse do you think that leaves for people whose Facebook friends do not refuse? If one of my Facebook friends allows this, they are, unbeknownst to me, sharing information that I consider private with that employer. I choose to put certain information on Facebook, trusting Facebook, its partners, and my friends with that information. I do not choose to trust random employees of random prospective places of employment with that same information, so this is a violation of my privacy expectations as a user of Facebook, and as a friend.

"You shouldn't put information into Facebook if you are afraid of that information getting out." I don't.

But people (including you, by your response) do not fully understand the risks they are taking.