I think the internet changed expectations of a person's work efficiency. Managers expect people to accomplish more in less time. Is it fair to claim that people are much busier today than they were about four decades ago?
The underlying question is, how much of a difference would it have made if we didn't have the internet? Would we still have the same workload but with pre-internet expectations of efficiency, or would we be progressing toward the inevitable workloads and expectations of today, only much slower without the internet?