I'm suggesting that it's complicated. In all of your replies you are talking about what you want to pay for and what you expect in return. But, this isn't about you. It's about hundreds of millions of the poorest people on Earth. If you went on tour of India to personally tell a few tens of thousands of them that because free Facebook access would set a bad precedent (which you are totally right about, btw) they should continue to be cut of entirely until they get rich enough to pay for the level of access you already enjoy, you might find that the issue warrants a bit more thought.
Facebook access isn't like Polio vaccination. Poor people in India worry more about food than Facebook/Internet access. Even if they were given internet access, Most don't know how to read and write. Those capable of spending around 2000 rupees on a smartphone(lower middle class) can also buy a pre paid internet pack for an affordable price. And already do.
If you want to see the real innovation happening in countries like India to make Internet accessible to every one look at : http://www.saankhyalabs.com/ Who are working towards using wasted tv bandwidth for internet.
I agree with most of what you've said, but I think its inaccurate to say that most don't know how to read and write. According to the 2011 Census, the literacy rate is 74% [1]