AGI would provide a labor pool which requires vastly different resources than our current labor pool. An AGI labor pool would require largely the same material components and operating costs as current IT infrastructure ie: metal, silicon, electricity. Our current labor pool requires food, education, medicine, and nearly everything else civilization provides in order to supply our human labor pool.
Imagine two enterprises producing identical products, one employing human laborers, and the other employing AGI laborers. If the cost of AGI labor is lower[1] (or has better scaling dynamics) and human laborers, then the AGI-based enterprise has an advantage. Naturally enterprises which can be AI-ified will be. This has obvious short term benefits to the costs of production, but difficult to understand long term impacts.
The other interesting effect of AGI is the scaling of the magnitude of intelligence. If AGI is not bio-limited like our human intelligence, how does this affect the results of AI? Are there scientific advances discoverable by AGI, which would have never been discovered by human-level intelligence? In this aspect scientific progress has the opportunity to advance faster than if we advanced it ourselves.
With a game-changing tech like AGI there are certain to be aspects which either I missed or others consider more important. Interested to hear other people's (or AI's) takes on this.
[1] 'multiple pennies of electricity per 100 pages of output (0.4 kWH)' https://www.gwern.net/newsletter/2020/05