It's like the math that takes # of homeless people times cost of an apartment, and then people claim we can solve homelessness for [reasonable amount]. Makes sense until you look how much US spends on homelessness every year already.
Cell phone technology was the closest thing we got to teleporting technology and wealth to the rest of the world. Most developing countries completely skipped a phase of development that required crazy amounts of infrastructure to be built out. More people have cell phones than running water. It's pretty incredible if you think about it. Hopefully AI will be a similar leap frog.