No we don't.
> collecting data from people's networks using their Google Maps wifi-sniffing vehicles
That was an error due to misconfiguration, failing to discard the data beyond that which identified the network for location mapping.
[1] https://www.wired.com/2012/05/google-wifi-fcc-investigation/
Even that story portrays the payload collection as basically one "rogue" engineer's intention, not a part of a business or project plan. While other engineers accessed the collected payload data later, they may have reasonably assumed that if they had it, someone had ok'd it.
So rather than a coding error, it was an organizational failure to oversee the engineers' work, the FCC's report says as much.
1. we didn't do it
2. we did it by accident in small cases
3. we did it by accident in worse cases
4. we did it intentionally but one guy was responsible
5. we did it but it was just one rouge dev. team
Add to that the unredacted report noting that Google kept delaying and hindering the investigation and it is rather clear that "6. we did it and management was neck deep into it" is more likely than not.
Seems like basic data security to me. If my credit card number (valuable data) is posted to the dark web I have to assume someone will use it and it's insecure. Google has the data, so they can now use it whenever they decide it's valuable. Until I have evidence that it can't be used, I have to assume it's insecure.