GPT3 has shown how ML can be trained on multiple unstructured data sources to produce structured information on demand. Iterate a few more versions from here, so that the models are stronger at producing the correct structured data, and the impact on every office job will be profound. I.e. instead of training a generative model on text from the internet, train it on every single excel file, sql database, word documen…
The value of a human is in reacting to changing requirements, considering context and in understanding other humans. AI cannot do any of that reliably.
Some office tasks can be automated and those that can don't need AI anyway - they need properly labelled data, databases and some coding.
AI will be very good at creating the illusion of competence. AI cannot actually ensure competence or verify it. That will remain the domain of humans.