Well, I get paid well and I still got patents for my work. Since I work in industry I actually get a bonus for each patent that gets granted.
That isn't how USPTO inventorship works. US Patent Law is rather unique in that it puts a central value on proper inventorship. No matter WHAT companies are working on what.
Doesn't matter. It matters to the business if they don't see any value in protecting that IP, which is not uncommon.
So there's no real value to your version? That's sad. I bet there actually was value. But it's not uncommon for legal departments to save their filing budgets if the technology isn't of any real value to the core business or they don't feel it is sufficiently solid to make it through patent prosecution.
But this all continues to miss the point: a patent is a limited form of a "monopoly" enforced by the US government.