what if I were to take your software, give it to Joe Smith, and tell him that he can distribute it. Joe then packages the software up and sells it to people.
then you notice that your software is showing up in strange places, go to Joe and provide proof that it really was your software, and that I had no right to tell him to publish it.
obviously he will stop distributing the software, but now there are lots of copies of your software around without your permission. how can you be 'made whole'?
in the case of electronic distribution, one method (which has been ordered by the courts in several cases) is to force Joe to issue refunds to everyone he sold your software to, and use the same distribution network to remove the software.
remember, until you told Joe that the software was yours, he had done nothing wrong.
The people who purchased the software from Joe thought that they were making a legitimate purchase, but they were buying stolen property.
now, you can make the argument that all joe would need to do is to turn over the money that he made from the sales to you, and in some cases that will be enough, but what if you really don't want your software to be out in the wild?
also, in cases of theft one of the first priorities is to try and get everything back as it was before the theft, and then look into penalties. if things cannot be put back, then compensation for the loss gets added.