I would make the distinction that architectural quality has a larger and more concrete impact on long-term efficiency and productivity for developers than code quality. You can incrementally fix code quality when there is value in doing so or time but architecture tends to live forever. I've seen code bases with excellent and diligent code quality but poor architecture, which rendered many nominal productivity gains from the very high code quality moot.

From a business perspective, investing in architecture quality buys a lot more optionality than investing in code quality, and so prioritizing the former is almost always the right decision.