If the industrial revolution wasted the majority of its input for low value / unneeded output it wouldn't have been a revolution. Please enlighten me on how LLM

If the industrial revolution wasted the majority of its input for low value / unneeded output it wouldn't have been a revolution. Please enlighten me on how LLMs have revolutionized the world and then feel free to share how much energy, money and time have been sunk thus far with little to show as a tangible increase in the lives of a global human population.