Of course gold has a different value, just like diamonds, it's a glittering shining rock. We humans like things that are pretty.
BTC, not so much, if it were just more pretty.
The looks of gold are only a small part of its value. It's an element (element 79, symbol Au), one of only a small handful of them that possess all sorts of important properties valued by civilization, properties that other elements do not possess, and it's extremely rare, at least anywhere near the earth's surface (the core of the planet is likely pure gold, but you cannot reach it).
