it's more that their morality includes compliance with the laws of the states they operate in. It always has, and they will buck those laws on extremely rare occasions, usually when they believe they are seeing a mis-implementation of the laws, and (when outside the US) usually by ceasing to do business in the territory (see: Google's pullback from China).

None of what we're seeing in Pakistan right now is new for tech company SOP. Google Maps shows different borders depending on the location of the originating query. Twitter masks certain tweets for users in Germany because some speech that's legal in the US is illegal in Germany and the penalties are harsh for propagating it.

It's a big world, and the US doesn't have a monopoly on law or ethics in the international community.