If anything shows the great failure of the church of economics, it's this attitude. "Everything has a monetary value".
Here's a clue to those in denial: economics can only value things in the past and the present, and only in approximation, and only in human terms of immediate utility.
Because economics CANNOT properly value virtually anything that has not yet occurred. Accounting systems may exist for it and of course they are the favorite of the cooked book. The faith that the free market is some vastly hyperintelligent entity that exceeds the power of human cognition.
Of course human perception of reality is fundamentally flawed, even for those with heavy scientific training in the compromises our senses and psychology make to perceive the world. And yet economics treats the flawed everyday idiot as some ultrapowerful computational unit of valuation of reality. Of course, that is dogma.
What is the economic value of a recently extinct species? What is the economic value of a non-acidic ocean? What is the economic value of the continued operation of oxygen-producing microorganisms in the ocean?
What is the value of the human race if it goes extinct?
The core of the problem is the function of money and monetary value: it has an essential component of whitewashing virtually all environmental impacts and damage, as well as human misery, inflicted in the generation of the "currency number". Once the "currency number" has been "earned", the sociopathy involved in the generation is blessed by the church of economics as a completely forgiven sin: because the money is the only point, a tautological pursuit.
What oil executive, car executive, politician, industrialist, coal mining executive will every face the music for their environmental sins? Because they have been immediately pardoned from the confessional booth of the limited liability corporation.
One of my prayers for cryptocurrency was a way of creating a currency that could somehow devalue these fortunes of destruction once their true macabre consequences became apparent, but it would just be another farm of energy-sucking servers, and lets face it, the damage is mostly done at this point.
So, rant aside, it doesn't FUCKING MATTER WHAT THE DOLLAR FIGURE IS IF WE GO EXTINCT. Dollars don't exist without humans, and humans don't exist without a functional biosphere. The cost is Infinite Floating Point Overflow. It is NaN.