I’m a little reluctant to equate innovation with the costly basic research and development activities of developed countries; it also shouldn’t be seen as a matter for a much more advanced stage. Perhaps the way to look at is this: Let’s not call it innovation, let’s call it competitiveness. Do companies need to be competitive or not? I mean, do they need something to differentiate them from similar companies? Everyone benefits from infrastructure improvements. So, if a company is to pull ahead and increase its market share, it needs a competitive edge.
I agree that many companies and countries start off by imitating others and then gain a footing on their own. But if a company manages to survive by copying, it’s relying on another competitive factor. It has an advantage of some kind, cheaper costs, perhaps, or cheaper labor, or a closed market, for example.
Where these are absent, competitiveness requires innovation, and by this I don’t mean grand or costly R&D activities or anything, just any novelty that creates a competitive edge, be it a new product or new production process.