I disagree, as does the history of economics.
It gives innovators an advantage in recouping the costs and possibly making a profit from the time & money they invested in creating their inventions. It gives certainty in the form of a framework within which such people can plan for the future- especially in investing in their own financial health or in further R&D. It minimizes the expenditures innovators must personally invest in self-help measures to protect their innovations from those who would take them, freeing up capital.
There are concrete reasons why China now protects the IP of its nationals as vigorously as any Western nation: the same pirates they permit to go after the IP of foreign capitalists were equal opportunity thieves. Rampant domestic piracy was reducing ROI numbers into the negatives. As a result, China was experiencing an internal collapse of its native "inventor class". Those that could leave the country were trying to do so, and those that could not were going out of business.
Its simple: if innovators find it is counter to their best interests to innovate, they are far less likely to do so.