Thinking reasonably, I can assert that eating a raw corpse (especially if it's been like that for quite some time) is far worse than not eating it at all. Point being, I don't think it'll make the situation better (maybe even worsen it, if you get a disease from it...). Plus, I wouldn't be emotionally sane.
I'd rather die naturally (somehow), rather than corrupting myself, when there's no certain hope of surviving.