The 'right to be forgotten' has more to do with the fact that in the past there was a barrier to entry to gain access to this information. Let's say that (e.g.) you were arrested at a peaceful protest in your teenage years. The Internet makes it easy to gain access to this information with minimal effort and/or cost. In 'the old days,' someone could find this information about you (public record and all), but they would have to be very motivated to look into it.

It's the same thing with the move from manned helicopters => unmanned drones for local law enforcement. Unmanned drones significantly lower the upper bound on what local law enforcement can do with air surveillance. Society didn't care too much about reining in local law enforcement on these issues in the past because it was too costly (to law enforcement) to be a problem to society at large.