Whether and to what extent AI can be monetized is an open question. But there's no question that LLMs are already seeing extensive use in everyday office work and already making large improvements to productivity.
Are you referencing something specific here, or is there something you can link to? To be honest the only significant 'disruption' I've seen for LLMs so far has been cheating on homework assignments. I'd be happy to read something if you have it.
So again, let's see some proof of this extensive use and large improvements to productivity.