My ethical standards for companies vary from company to company. I mentioned Mozilla in my other comment. If they had done this I would hold them to a higher standard because of what they stand for. Facebook has a totally different mindset as a company. Their priorities are what make me hold them to such a "low" standard.

I also try to put myself in the company's shoes. If I were them, this issue just wouldn't be my priority. It's a nice to have, not a must have and if I had to make the choice between what's best for the company (which also means most of its users) I'd make the choice to disappoint some people.

What I want from my world and what I expect from Facebook are two different things. I'm all for privacy and I want Facebook to respect that. But I also can't expect the world to cater to my every want no matter how morally just I believe my requests are. Taking my opinion on what I think we should expect from Facebook and turning it into a referendum on my morals, lack of morals, or cynicism is not only drawing false assumptions but severely exaggerating things. I can be in favor of using Tor to access Facebook and Facebook's right to refuse me access to it because of it at the same time. Things aren't so cut and dry.