Riff-raff, as I said before, i agree with most of your points, and its not my intention to deny them.
That said, I don't agree with 2 of them:
First, I don't think F1 and efficiency improvement (or call it greener, if you prefer) are something that cannot fit together. That F1 was in the past about using lot of gas and that stuff, does not mean that reducing that would do any harm to the entretainement. I don't see, for example, how putting HERS would do any harm to the show. Same with most other sensible efficiency improvements ideas.
The other one, about F1 not having any road-relevancy, I disagree too.
Obviously no one with some knowledge would expect the very same designs or even techs to be directly applied to F1 (eg carbon fiber body), but all the pushing the limits in our sport certainly helps in bringing knowledge forward, hence making easier to later apply it to road cars. If you know where the maximun of a tech is, you can make easier its application to less demanding uses.
Heck, look at the much-talked KERS. All the R&D put on both the electric motors and the batteries will indirectly bring the whole tech forward, and so we can expect it sooner in our everyday cars. WIlliams has already being in talks with Jaguar and other manufacturers about a mid term implementation in their cars.
Imagine what could be done if FIA gave more technical freedom, while still keeping costs within reasonable limits.