In my opinion it's the most important and the most neglected one. General population doesn't care because it doesn't understand how does the Internet and related technologies work and "has nothing to hide". So legislators don't care much either and violate it routinely.
The question about privacy is not about hiding, it is about sharing. It is not that I have nothing to hide, I just do not have anything I want to share, especially unknowingly.
A recent study found that younger generations said that it was easier to leave their partner than to leave a company that did not respect their privacy [0]. It is easy to adopt the mindset of 'privacy nihilism'[1]: your data is out there and you cannot escape it. Yet that same aforementioned study also noted that 75% of Americans were concerned about online privacy.
And there are more reasons to believe that attitudes to privacy are changing for the better. Research by Demos found that half of young people in the UK said they were either extremely or very concerned by 'online privacy'.[2]
Arguably the biggest obstacle to privacy is the effort it requires. People perceive reclaiming privacy to be far harder than it actually is. But for most, privacy is achievable. As individuals, we have the ability to chose which services we use. You might just want to switch to a few more privacy respecting alternatives, using Startpage instead of Google, or ProtonMail instead of GMail. Sites such as Privacy Guides, of which I am a team member, showcase tools and knowledge to protect your privacy. It is surprising how few steps it can take to massively increase your privacy.
