If you would want to read a little more, you'd know that gold's utility cannot explain its high price. Its price is derived from scarcity and hoarding, not so much from its utility.
Just go and ask your government why is your country keeping (hoarding) gold. Is it for its electric properties, is it that they want to make jewelry, or it's because it's scarce?

But you don't care about this, since your aim is to... I don't know, troll, or scare newbies, or something like this.