Look up the disastrous economic history of Spain after the conquistadors sent their spoils back from South America before you call gold 'non-inflationary'. Gold is just as inflationary, or deflationary, as any other value store -- it is merely that the money supply is controlled by miners (or, in that case, conquerors), rather than central banks. If miners and conquerors had any interest in controlling the stability of the economy, I'd be happier with this. They don't.
The point of money is to substitute for other things in transactions. It is those other things that are the real store of value in any society, and their value is *intrinsically* precisely what humans attach to it. Value is always, necessarily, a human social construct (unless we discover intelligent aliens or build strong AIs). Gold is not magical: its value is also a social construct, but a less conveniently controllable one.
If you think your governments are so corrupt that they cannot be trusted to reliably maintain a stable money supply, then gold (or some other hard-to-control store of exchange value) is preferable to fiat money. Otherwise, fiat money is preferable. In developed countries at present, the latter is very definitely absolutely the case: most of them have independent central banks whose entire raison d'etre is to keep the economy ticking over. (These are the very same independent entities, like the Federal Reserve, that gold bugs like you are constantly damning. Economic cluelessness of stunning magnitude, IMNSHO. The problem with the Fed is not that it is too independent: it's that it is not independent *enough*.)