"This is so disappointing, wonder if there is a way to hire for integrity. We are probably focusing on the intelligence part and getting smart people here who lack a moral compass and loyalty."
Note how the focus is not on the morality of honouring users privacy, but on the "morality" of protecting the company. Collecting personal information about billions of people, using "questionable" practices, then selling access to it. Its a "good job". One that the commenter does not want to lose. Understood.
However there are laws to protect companies against employees who leak secrets. Employees sign nondisclosure agreements. Companies can adopt no tolerance policies on leaking to the media. They can terminate employees who violate them. No employee needs to consult a moral compass; the rules are clear. Break them and there can be grave consequences.
On the contrary, there are no equivalent remedies available to users whose privacy has been entrusted to Facebook. There is nothing to keep FB honest. There are no grave consequences for violations of user privacy.
When there is a "leak" of users information, the user is entitled to nothing more than an impersonal apology.
Relative to other businesses, one might go so far as to believe "there are no rules" in the space where FB has operated. Users (who are not the customers of FB) have no recourse; theres nowhere else they can go. Buy.
In all seriousness, it is the user who must hope that every FB employee has a "moral compass". Whether FB employees can trust each other is not what the user wants to know. The user wants to know if she can trust FB's employees.