Where do we draw the line on AI used unethically?

I'm conflicted on AI and how easy it is to find someone by just their face, how they walk, voice recognition, writing style etc... - on one hand, it helps find missing persons, criminals, and everywhere its used to help us as humans better our lives.

On the other hand, I feel like its getting to a point where we don't have privacy at all and day-to-day people don't see it quite yet.

What would a perfect world look like …

criminals don etc find humans missing people perfect point privacy recognition technology voice voice recognition world writing