It's not rare but the value is a mixture of scarcity and it's ability to conduct, it's ease of working with to produce things in electronics and it's incredible ability to fight off corrosion unlike many of the other precious metals
Before now with paper money, and electronic money, gold was a store of currency because there was enough of it to go around but not so much of it everything could have it
So rare no. Valuable yes. We actually use gold in tons of things that aren't frivolous
Peep your gold plated hdmi chords and the reason why being gold plated is important vs nothing we use daily or simply for diamonds
Ok, "valuable" as in it's usage, but not monetarily expensive like it's market and sold to be as jewelry.