I actually don't disagree with you. Technology is pretty fluid, at the right price. If you're saying 'My country's advantage is that if needed, it has the resources, research facilities, and the experience to surge into any given field' I would argue so does China. The irony is that China is throwing money into a lot of theoretical research.
It's second only to the U.S. I think you're way over estimating the ability of the U.S to 'surge into any field' while simultaneously downplaying China's ability to do the same.
An interesting question: If China and the U.S had a 'Space Race' (or something similar, such as getting the first man to Mars) who would win? Naturally you'd say the U.S, but I think it's that knee-jerk reaction that the U.S is automatically superior that blinds you to the current state of China's development, and it's ability to 'surge into any field' and hold its own against the U.S or other OECD country. China may not win, but it would sure be a much closer fight than you give credit for.