Cultural issue (like war)
The cultural issue is analogous to lethal warfare - the greater the distance between causes and effects, the less the agent's perception of responsibility in the act. "Fire and forget" as they say. The best amnesia (bearing in mind that more Vietnam vets subsequently took their own lives than were killed in the line of duty - this example is not unique BTW) is where there is no necessity for amnesia at all.
In the case of govt data protection, the fact that civil servants are remote from the causes of their salaries means they are equally apt to "fire and forget" personal data. But most people have forgotten that taxation originated to pay for war - or more likely never learnt it at school in the first place.
As governments no longer see their role as a minimal one of providing defence but as providing benefits (maximally, in elaborate ways, to more and more of the electorate), the cultural issues in dealing with private data property are not going to change any time soon. You are not, of course, going to be allowed a democratic debate on the philosophy of politics.