That's terribly ironic, since the source code is completely useless to the user, only developers.
Mozilla Science, for example, tries to pair up researchers who have ideas together with developers who can code to build open-source projects. Despite the fact that the researchers may not be able to code, the fact that they have the right to share and modify the code is important.
to put a finer point on it, the concept of "layers of abstraction" is fundamental to computers and software. i can know quite a bit about adjusting the pieces of a program without having the ability to build it as effectively as i modify it.