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No matter how good you think the intentions you have are. If *insert corporation here* wants your code they can take it and use it to create restrictions for the user. The GPLv3 allows the user to take away those and use it on the product. Hardly enforcing political views. Basically, the GPL is to allow the most freedom for end users and make sure that the end users can trust you. If say Linus was hired by MS and decided to close down all of Linux sites, you could still get the kernel. If MS wanted to make a backdoor in the kernel code and sell it as Windows 7, you had the right to take that out despite how much MS wants your computer to be zombified into submission to the *AA.