The complicated, ambiguous milieu of human contact is being replaced with simple, scalable equations. We maintain thousands more friends than any human being in history, but at the cost of complexity and depth. Every minute spent online is a minute of face-to-face time lost.
A robot-arm in a factory doesn't decide minute by minute whether to rivet or revolt - it just does the job is has literally been trained to do. It's if and when we build a conscious robot that we may have to worry.