Good to think in this direction. But emotions ain't absolute. They are always relative & subjective, so difficult to measure and set a benchmark to quantify them. Also to value materialistic assets in terms of emotions, we would need some benchmark Exchange rate with currencies that already are in circulation. Of course, market can decide that too but it may become too speculative.
However, I understood the underlying issue you're trying to raise. Since the current system don't value or can monetise asset classes like positive emotions, good character, integrity, personal relationships, air & water quality, environment etc., money minded people or civilisations can't assign any empirical value to these vital & significantly important elements of our existence and hence they are undergoing an existential crisis of their own.