There’s a world of difference between a government using legally collected data for multiple purposes and an individual abusing their position purely for personal reasons.
> legally collected data
In both cases, the information is legally collected (or at least, that's the only data we're concerned about in this conversation).
- government using
- individual abusing
^ Both of those are someone in the government using the information. In both cases, someone in the government can use the information in a way that causes an individual great harm; and isn't in the "understood" way the information would be used when it was "pitched" to the public. And in both cases, the person doing it will do what they want an almost certainly face no repercussions if what they're doing is morally, or even legally, wrong.
The government is collecting data (or paying someone else to collect that data, so it's not covered by the rules) and can then use it to cause individuals great harm. That's it, the entire description. The fact that _sometimes_ it's one cop using it to stalk someone or not is irrelevant.
& effectively if there is no checks on this is there actually a difference? There only difference is that the threat is to an entire cohort rather than an individual.
The whole social battle is a constant attempt to align our laws and values as a society. It's why we create new laws. It's why we overturn old laws. You can't just abdicate your morals and let the law decide for you. That's not a system of democracy, that's a system of tyranny.
The privacy focused crowd often mentions "turnkey tyranny" as a major motivation. A tyrant who comes to power and changes the laws. A tyrant who comes to power and uses the existing tooling beyond what that tooling was ever intended for.
The law isn't what makes something right or wrong. I can't tell you what is, you'll have to use your brain and heart to figure that one out.
There is also a world of difference between a government using data to carry out its various roles in service of the nation and a government using data to terrorize communities for the sadistic whims of its leadership.
Think I'm being hyperbolic? In Trump's first term fewer than 1M were deported. In Obama's eight years as president, 3.1M people were deported without the "techniques" we are witnessing.