If you really want to get picky, there is NOTHING that has any intrinsic value to it. Not even your own head.
All values are RELATIVE.
However, for as long as there have been humans to pick up shiny rocks, they have valued gold for its beauty and workability and its permanence, as it does not rust, corrode, or tarnish, unlike all other commonly found metals.
Gold is still loved by people for these same reasons. If you doubt that, just pay attention to how much jewelry people wear, and how much of it is gold in appearance at least.
That gold has many industrial applications as well serves only to enhance its perceived value as well.
The gold standard is every bit as good a standard as any other, and better than most because gold is a prized possession even though it isn't edible and won't keep you warm at night. (Well, gold foil blankets will actually do that.)
What's our current backing for our money? Nothing but faith. If you take a fifty dollar bill to a Federal Reserve bank and ask to redeem it, you'll get a blank look. If you were to have taken a fifty dollar bill (backed by gold) to a Federal Reserve bank back in the days when we were on the gold standard, AND a dollar was redeemable in gold (this would be before 1933 after Roosevelt asked Congress to repudiate the gold redemptiion clause in all government agreements) you would have received 50 dollars' worth of gold, or 1.5625 troy ounces of gold, at 32 dollars per troy ounce.
The great advantage of tying currency to a standard that is widely held to have something approaching intrinsic value, such as gold, is that it makes the currency highly resistant to inflation.
FDR's moves against our gold backed currency system marked the beginnings of the financial aspects of the move toward the New World Order.
Yes, returning to a gold standard would be an excellent idea if you consider stable currency to be a good idea. Only bankers think otherwise.
Our existing currency system is scarcely one level away from simply printing money and handing it out.
CJ