A Lesson from China
This is a lesson that started with Google, way back in 2006. That was the year that Google set aside the motto "don't be evil" for the more pragmatic "don't be shut out of the enormous Chinese market," and willingly provided the Chinese with a censored version of Google. The official rationale was something along the lines of "they're censoring us anyway," but it seemed more likely that the rationale was "do you have any idea how much money there is to be made, because, damn, it's a lot."
Google pulled out in 2010, over a Chinese attempt to hack gmail and other pieces of Google. That response (Google actually called it "retaliation") was remarkable, and it didn't last. Google is set to re-enter the Chinese market.
Businesses looking to operate in countries with repressive, censorship-prone laws face a question-- CURMUDGUCATION: A Lesson from China: "A Lesson from China"