There's a difference between "following the law" and eagerly participating in state-sponsored censorship.

There's also the fact that, in countries with basic human rights codified in their constitutions (i.e. most of the Western world), companies like Apple, Google, and Microsoft make a lot of noise about protecting the rights of their users. But in less free nations, they tend to silently flip to the other side and go out of their way to appease the governments of those nations, especially wealthy ones like China. Hence the ease with which their services are manipulated in those countries.