You can see how this becomes complicated when Twitter & FB both recieved integration, as they both directly compete with each other in a number of spaces.
This kind of deep integration should've been done at an API level, where the user has more control over what kind of apps are deeply integrated, rather than the closed system that Apple supports.
In terms of capitalism, I suppose that remains to be seen...
From a business perspective the platform gives an opportunity to use InfOrmation creatively and develop products and sell them. I don't see how such a personal information based business model can sustain for two decades unless it's ok for us as a society to live as a statistic because of the sheer amont of data that has been created and analyzed on individuals and groups.