Why do people think gold is worth something? The only thing it's good for is electronics because it is a very good conductor of electricity. Things should be valued in terms of "How useful is this during a zombie apocalypse?" For instance, food, guns and ammo are worth something. Gold is not unless you need to manufacture electronics, but then copper would be just as valuable since they do the same thing.
The only thing that gives gold value is people think it's worth money. It's just the same as fiat.