Investment, investment, investment
If economic growth was achieved by state investment into the ideas of earlier inventors, it doesn't necessarily mean that the earlier work was done under conditions that encouraged innovation. It means that invention without investment to put the ideas into action is fruitless.
State control may once have been a good way to get investment into long-term plans, making use of the science to grow technology. I'm not sure that's any longer the case, as politicians have become short-term thinkers just like the financial markets.
The answer is to understand the actual reasons for technological and / or economic growth, rather than using cargo-cult science to attempt to generate growth by re-creating previous conditions.