It's not a question of cheap or expensive; it's when to pay what costs.

With LLM's, it's arguably easier to avoid exporting costs to the future, or to export them.

Whether because of LLM's or frameworks, process consistency typically creates a forcing function to continuously improve quality (i.e., avoid exporting costs); for each problem, create step in the process to surface and address it - hopefully in an automated way.

Having spent lifetimes trying to get teams to up their game, I'm hopeful this may help, if it gets baked in not just to code generation, but to process.