Probably been discussed before...

I found the ending to be quite hilarious actually, in a morbid way. Tessa is portrayed as this wonderful person who gives so much it's slightly annoying. The way she's presented as a morally glorified member of the press makes me think of her as a liberal stereotype almost. Then, through her actions, a drug that would have killed possibly millions is removed and people are saved. But not quite.

Given the lesser health care system and diet in the portrayed regions of Africa (compared to the US), I'm under the impression that most people who would have contracted tuberculosis would have died. Then, given that the drug wouldn't kill everyone who took it, what about the possibly millions of people it would have saved? Tessa was indirectly responsible for the deaths of millions of people and she was painted as a hero. Call me morbid but I find that pretty funny, actually.