Yes, nowdays bots and stuff try to mine whatever is more profitable. Back in my days 4Mhs on the network used to get quite the WOW. We will look backwards in time when 1000 TH/s will be quite common and laugh at our short vision.
Already now pools are absolutely necessary if you want to mine with a normal computer, let's imagine how it'll be with 1000 TH/s. But how much electric energy consumption would a 1000 TH/s network consume?