Privacy is big thing these days when it feels like every other service is just trying to harvest your data instead of just serving you. Their product is just a tool to get you hand over that data and the real product is you.
This has led to some people being extremely conscious of their privacy, even with the services that don't necessary collect their data. Or at least intend to sell it. Of course there is also the "traditional" privacy of being concerned who can access your data in the first place. Especially for the more personal and sensitive things.
In our company we try to respect the privacy of our employees. But this often leads to conflicts especially with the security related matters. People don't like to be monitored, but ensuring security there needs to be certain level of monitoring still in place.
Company provided tools and services can't be assumed to be private in the same level as privately used ones. After all they are company provided and intended for people to be able to do their jobs. We don't have strict policies against using company provided tools for private things as long as certain caution is being taken care of. But that freedom comes with the price of privacy.