This is not a good analogy. A substantial chunk of the value of software is often the idea, not only the time worked on something. Ideas and inventions don’t happen on a schedule. Think of a chemist that is tasked with finding a way to synthesize a compound. He tries all day at work, and in the evening, on the couch, he’s struck by a bolt of enlightenment. Who does that idea belong to? German law would be pretty clear - to the company. And often, software is similar.

I am just relaying information that I've paid money for multiple lawyers to explain to me in the past. If you think they are wrong, an explanation or counterexamples would be helpful.

Which "inalienable right" applies here?