The problem isn't Zuckerberg.
The problem is people believing a huge company is going to be trustworthy, with a 33 year old CEO who got FB up and running at the age of around 20 like he's some kind of god. At 20 years old, most people are in college.
Just because he shows up in every photo wearing jeans and a grey t-shirt doesn't mean he's the chillest guy in the world. Steve Jobs was similar. Black shirt and jeans. Going strictly on his appearance, he seems like a chill guy compared to stuffy white haired CEOs in suits and ties. But read up on Jobs and even during his founding Apple days, it's pretty consistently communicated he's actually a jerk behind the scenes.
No different than people idolizing athletes or young celebrities. They might be young, famous and rich. But that doesn't mean they are experienced and mature.