True, if you are in a big company with lots of people, you won't benefit much from the improved throughput of agentic coding.
A greenfield startup however with agentic coding in it's DNA will be able to run loops around a big company with lots of human bottlenecks.
The question becomes, will greenfield startups, doing agentic coding from the ground up, replace big companies with these human bottlenecks like you describe?
What does a startup, built using agentic coding with proper engineering practices, look like when it becomes a big corporation & succeeds?