Labor automation is clearly a tempting mental model, and there will be some very successful companies built around it. But, consider a few downsides:

Its relative obviousness and legibility lends itself to intense competition. “We are the only AI company automating X job in Y vertical”, starts to sound a lot like “we are the only British restaurant in Palo Alto.”
If you offer a business a way to do something that they already have a way of doing (paying humans, often inexpensively, who are super flexible and high-context), it has to be significantly better on some axes and highly reliable to justify risking what companies value most: predictability of growing profits. Many will not be sufficiently high ROI in a one to one comparison to existing globalized, technology augmented human workflows.