This is quite a general statement, but do you see a correaltion between the formation of intelluctual property laws and the number of R&D achievements and inventions?
In the pharmaceutical industry, for example, some companies won't do research into what are known as 'orphan drugs' because the amount of research (and risk of the promising drug being a total failure is high) might not mitigate the costs even within the IP law structure. Thus, further government intervention is required to give incentive for these companies to do research on these drugs. I assume the governement would justify this action to allow development of drugs that can treat currently untreatable or hard-to-treat disorders.
I would say, personally, that IP law is a very important area of law. However, it does need a little shake up to mitigate the problem of patent trolls (a general definition: companies who aggressively acquire patents, and litigate to earn damages).