I suspect you're a self-proclaimed "rock star" who's convinced he's God's gift to programming, but hasn't worked on a team of equally-smart people, or who doesn't understand the reality of large projects.
Ability to bang out lots of code is the right way to measure a junior developer, but is not the essence of productivity. Two guys drive from NYC to LA - one at 10 MPH, one at 100 MPH. Who get there first? Well, it's important to know which one is headed in the right direction, and which one drives into the ocean, and is either of them so careless they're unlikely to make it there alive in the first place.
If your job skill is "given a clear design with unambiguous requirements and success criteria, I can bang out that code very fast," well, that's great for a junior dev. If you write well-tested, debugable, supportable, maintainable, secure, scalable code given ambiguous requirements, great, that's a successful mid-career dev. If you can fix everything wrong process-wise with your 100-dev organization so that everyone can work twice as fast, well, you're 10x as productive as the guy who sits in a corner and bangs out 10x the code, aren't you? If you can invent a product that solves a problem that everyone has, but no one else thought there was a solution to, well, the guy banging out code isn't even on the same scale.