Ultimately how much something is ‘worth’ is secondary. For what it’s worth lollipops may ultimately be what is worth most.
What is important is the link to ‘real wealth’: primary wealth (productive farmland, woodland, access to minerals) and secondary wealth (e.g. machines, tools, elements needed to transform the production of primary wealth into useful products that are needed in society). All the rest is ultimately just a derivative.
Perspective is important; the best baseline of real value in my view? What is needed to (debt free) purchase a piece of land that is able to, in a sustainable way, produce the food/ energy needs of a family 
.