I'm following what you're saying completely.
In answer to your question, as part of the application process, people have to identify what the purpose is, and when they're granted a crown copyright licence, the purpose is part of that licence. If we find out that they're doing something that's in violation of it—and that sometimes gets reported to us—we will issue a cease and desist. We will confer with the authoring department and confer with our legal services.
In the vast majority of cases, when people misuse it, it's inadvertent; as soon as we find out about it, we advise them, and they stop immediately. They apologize, and that's it. In the odd case it does happen that it escalates, and we deal with our legal services to be able to deal with that.