Is New Google Photos Just for More Big Data / Big Brother?

After a weekend of overstudying the groupings and trends in Google Photos at Google I/O 2015 in San Francisco. The most buzzed-about application was the announcement of Google Photos from Google's big developer conference last week, automatically scans, backs up and organizes the massive heap of photos kept on your smartphone.
The stated goal of the app?
According to Google's team is that it will make it easier to "find that photo" you want.
The actual effect: Google is so good at categorizing your photos that it offers an unnervingly accurate picture of your life. It's eerie to see the visual proof of Google's Big Data applied to the faces of your father, mother and grandfather — which it can recognize across decades with uncanny ease. Which all may make one wonder and explain 'Why is all this incredible technology free?'