A physicist I knew refused to fly on small commuter planes. He knew what could go wrong and he was sure they weren't safe. In fact flying even on small planes is statistically safer than driving a car.
I thought about this story while I was reading Blown to Bits by Hal Abelson, Ken Ledeen and Bill's advisor Harry Lewis. The book is all about how the information revolution has put all our personal stuff out there. Knowing how computers and the Internet work can make one paranoid about information and this is why privacy is always a big issue among computer scientists and tech workers. But then I finally gave up on the book when I realized they gave very few examples of people who actually came to any harm from losing their privacy.
I've seen many a crypto talk talk about a situation where someone's personal information comes back to haunt them when they run for public office. But we live in a society that values openness. Obama didn't hide his illegal drug use, he talked about it in his autobiography and it didn't hurt his campaign. Anthony Weiner resigned from Congress not because he tweeted an inappropriate picture, but because he lied about it. Bill Clinton was impeached and Nixon resigned not for their actions but for their coverups.
Being open has its positive effects, it allows search engines, recommender systems and even people to tailor their behavior to your needs. We can imagine easily, as computer scientists, scenarios where loss of privacy has disastrous effects. But your chances of running into such problems are about as high as being in a plane crash.