Selling information is a tricky business. Journalists, for instance, know very well about that.

If you're a journalist and you have a scoop, you must absolutely keep it secret until it is printed and published by the journal you work for.

A scoop is something that might have a colossal value. But as soon as it is unleashed, its value immediately vanishes until it reaches zero. Of course, you might try to create some laws that forbid to give your journal to someone else, or to tell anyone about what you've read in it. But this would be a silly waste of public force resource, and society should not do that. I guess you would agree that a « non redistribution clause » on a paper journal would be absurd.

Information does have value, but only its publication can be converted into price, not its diffusion. Diffusion may still be commercialized, as long as it requires a physical media with non zero marginal cost. This is more or less still the case for journalism, for paper still being better lecture media than electronic screens. But when information can be reduced to its pure form, such as a scoop that basically is an information which stands in one sentence and can therefore be learned by heart and passed orally, only its publication can be monetized.

Nor software, nor any digital entertainment, are much different.