The circular reasoning is entertaining, as the low priced labor is theoretically generating the AI to be the ultimate labor-saving technique. But you don't need to save "too cheap to meter" labor. What was the last thing that was "too cheap to meter?" Ah yes nuclear power. Look how that turned out.

The two problems with trying to save the world via AI are the cheapest self driving car is a passenger train driven by "too cheap to automate" human, and an economy based on AI will be too poverty stricken from wealth inequality to permit the AI to generate a profit thus AI is not needed thus no need to destroy everything by applying AI.

The more AI is deployed, the poorer an economy will become, and the cheaper labor will become, making it quite a race to see if the AI gets smarter faster than economic activity implodes.

The most likely outcome of AI boosterism will be something like the environmentalist movement, but anti-AI. Who will be "The Lorax" of anti-AI?