The 2G Scam: which was the real scam?!

so the government wanted to auction the spectrum and rake in tons of money.. Raja let the mobile companies buy it cheap..BUT
- what right did the government have to auction the spectrum anyway? Surely it is a public good - like air.. tomorrow, if the government wants to auction off rights to air, will we stand for it?
- the government has every right, indeed duty, to regulate the spectrum, but to sell it? Don't we pay taxes already, for them to do the job of regulation?
- if Raja had in fact sold the spectrum for much more, guess who would have paid for it, in the end? You and me, of course - the carriers would have just passed on the costs to us in the form of higher rates.. it would have been just one more tax on mobile use - why should there be any?
- perhaps Raja saved us all from this completely illegitimate tax!
- which was the scam in the first place? trying to sell us something they had no right to sell?