I don't follow that logic either way. Of course you can hold the opinion that the principle is more important than any individual case. And the free software movement clearly does that.
On the other hand, there are many things that are critically important to human life, but that does not mean that specific ways of regulating them are human rights or even important.
Human rights are ends in themselves based on needs that all humans share, like the right not to get tortured. All humans do not share the need to distribute modified versions of other peoples code, even if that code runs the nuclear power plant next door. What humans share is the need for the code to be safe, but there are different means to that end.