clearly google CAN afford to not be a part of it, given how successful they are, in spite of their new relationship with china.
but anyway, the point is, if they had any decency, they wouldn't agree to the terms of a nation that condones the abuse, torture, and murder of their own people. after all, google considers themselves a "company that adopted 'don't be evil' as a motto".
and do you really believe that they want things like child porn censored? maybe. but what they really care to have filtered out, i'm sure, is anything that will make it harder for them to control the people.