Well, in France I DO have a property right. If he resells at a profit, I am entitled to a certain percentage. I believe California is experimenting with a similar law, at least with regards to sharing profits. Technology often creates new property rights, or changes how we view old ones. Probably the oldest property laws deal with real estate.
Computer technology is full of such issues.
What makes my data-base valuable is the selection and indexing. Suppose I break your encryption key and read your private files. The analogue would be my looking through your window with a telescope and reading papers on your desk. Again, in asking for legal protection in a case like this, you are asking for a definition of a new kind of property. Well, I take it all back.