A couple of the other posters brought up a very valid point, misidentification is VERY easy in a high stress situation.
Malicious accusations are a different situation entirely, but the accused would need to have convincing evidence that the accusation really was a pure act of calculated maliciousness on behalf of the woman. The odds of a woman maliciously accusing a total stranger of a crime are pretty slim. Granted, if it's a case of mistaken identity it's terrible, but to turn that case of mistaken identity into a situation where you pass go and collect hundreds of thousands of dollars is going to scare even more women off of reporting the crime and it could become a situation where the woman is essentially raped twice, once in violence and once in court ...
You have to think of the woman who is raped, maybe she gets a glimpse of the man, but he's moving, the light is bad, she can still provide the police with a general description, she saw his height, clothing, hair color, build ... say she picks a man out of a lineup who LOOKS a little like the guy who did the deed but isn't? Our minds can play some very twisted tricks on us (like trying to create an identifiable picture out of seemingly unrelated images). If the evidence doesn't back it up, then he's released. He won't go to trial if there's no evidence to create a solid case.
Unfortunately, business that goes on in our courts is too damn public anymore, and it has no business being so. So blame journalists, blame accessibility of public records ... but no good can come of suing the female victims who have made honest mistakes.
The fact of the matter is, nobody's life should be ruined because they were accused of a crime they didn't commi; but the problem lies with society, not the victim of a crime, two wrongs don't make a right.