In Europe, because of classification systems surrounding IBM and Nazis, have chosen to be very proactive about the dangers of having too much data. It may be used right now in a good way, but the data can easily be used for very evil things.
The GDPR reminds me of a Target (chain retailer) advertisement where a 17 year old girl was being profiled and send pregnancy, maternity, and baby ads. The father was angry at Target sending his daughter this, until the daughter fessed up that she was indeed pregnant. How did they determine this? Shopping purchase records. The GDPR may not have stopped the first occurrence, but would have provided sufficient "bite" to ever stop this from ever happening again.
https://www.forbes.com/sites/kashmirhill/2012/02/16/how-targ...