I know that was in jest (if not, you may be turning into a supervillian), but the actual implications of having facial recognition built into contacts is immense. It will be a Minority Report type world, where anonymity would be completely gone.

I guess it would mean no criminal outlaws or parole violators walking around, but for a common man to not be able to walk anywhere without everyone around him knowing everything there is to know about him....that's scary