So what will happen once most/all your staff is replaced with AI? Your clients will ask the fundamental question: what are we paying you for? You are missing the point that the parent comment raises: LLMs are not only replacing the need for your employees, they are replacing the need for you.
We don't produce software for clients. We provide solutions. That is what they pay us for. Until there is AGI (which could be 4 years away or 400) there is no LLM which can do that.