Probably because the threat is relatively new. It took hundreds of thousands of deaths and decades to get us to the current mandated safety standards for cars. It’s going to take a while for tech to catch up.
AFAIK only one US 2020 presidential candidate atm is even talking about data rights.
(Not that there aren't other good reasons to prefer a variety of politicians getting elected over a single one)
Are you talking Yang [0]? I think he's taking it most seriously but even as a Yang Ganger I do see other politicians talking about it, but I would say that they aren't taking it seriously [1]. I can't find anything about data privacy rights on Warren's, Sanders's, or Biden's issue pages. I did find mentions on Buttigieg's[2], Klobuchar's[3], and Gabbard's[4] (which is more anti-NSA than anything else). But yeah, I would say that Yang is the only one that I'm aware of that is making a very clear statement on this issue (since he ties it to his UBI issue).
[0] https://www.yang2020.com/policies/data-property-right/
[1] https://www.dailydot.com/layer8/2020-democratic-candidates-i...
[2] https://peteforamerica.com/issues/#ConsumerProtections
[3] https://www.klobuchar.senate.gov/public/index.cfm/consumer-p...
[4] https://www.tulsigabbard.org/tulsi-gabbard-on-civil-libertie...
There are many other examples.
Politicians are perfectly capable of understanding the social impact of technology... when they need to.
Especially after the data is laundered with machine learning and other opaque algorithms.