The Patent system works on the premise that the community benefits from the information shared, and rewards the innovators by granting them a period to capitalize on it without others grabbing a free ride.
Most of the FLOSS and FSF licenses preclude many of the most lucrative ways to monetize a creative idea. So, although the strong copyright protections remain, you effectively grant very broad rights to use your product. This includes the right for others to make money from it.
Does the open-source/free-software approach to sharing ideas and creations impede innovation by removing much of the financial incentive?