Not mind control. Humans are essentially mind-controlled by other humans without technology. It's called "culture." We all have to fit into whatever culture we belong to. Culture decides (to an extent) what's beautiful and what's ugly, what's popular and unpopular, what's good and bad, which opinions are "correct" and which are not, what's lawful and unlawful, etc.
We are born into a culture and brainwashed from infancy. We are taught "morals" through stories and religious teachings. Television, film, the internet, textbooks, fiction, videogames, and magazines are always there to influence us. And then our peers and family are there, too. Humans rarely seem to think for themselves. As social animals, we aren't supposed to.
"Mob mentality" is real. http://psychcentral.com/news/2008/02/15/herd-mentality-explained/1922.html
Most of us are probably susceptible to it regardless of what we may believe about our ability to think for ourselves.
In my opinion, the internet and modern technology are dangerous for other reasons. Privacy is essentially gone in technologically advanced societies. Every store has a "membership card" or "rewards card" that allows those that have one to get sales, promotions, and "rewards points." The real purpose of these cards is to target advertising and gather data about consumers and shopping trends for companies to use for themselves and/or to sell to other companies. So they can know everything about each one of us to get us to buy more "stuff."
And then many stores have "rewards credit cards" that can be used anywhere, and then the consumer gets "rewards" for using that card at other places. Like the Target Red Card. So that Target can know about your shopping habits everywhere that you shop, not just at Target.
And then there are the surveillance cameras and cell phone cameras (which basically everyone has) to record every stupid or embarrassing thing you do, so that it can eventually be posted on the internet and shared with the world until well after you're dead and buried.
Companies like Google (if you have an account) have your email info, which connects to the Google search history info, and the Chrome browser info, and the YouTube search info, and the pictures that you upload into the "cloud", and the info about apps bought or downloaded from Google play, and the songs and games. And those who stay signed into their Google account can expect to have all of that shared with Google, and even when they aren't signed in, Google collects what it can.
We have no real privacy as long as we use modern technology. And if I try to explain this to other people they think that I'm paranoid.