I think you guys are kind of overestimating how useful pictures of people's houses taken once every couple years are. I guess you can see what years I did a good job of watering my plants and what years I didn't. That's about it.
We should be wary of surveillance from tech companies, but the messages you send your friends from your phone are a lot more useful than a picture of your house.
I agree it's worthwhile estimating the power having this imagery gives. it tells much more than whether you watered your plants well.
For example, it can be used to estimate wealth at a distance. This means, for example, if I'm trying to make any kind of transaction, someone can look at my house and cars and make the price vary with their perception of my wealth. This is a form of prejudice.
It can also be used to look up interviewees. It can be used to give them the lowest possible salary based on where they live and what their perceived life circumstances are like. It's already been demonstrated that resumes with ethnic names are taken less seriously.
And what's more, this power can't be checked. Since google has a monopoly, no one else can challenge it. If it's used e.g. in a court case, no one can oppose it, because their is no corroborating or countering imagery.
And what's more, the way this information is consumed has asymmetry. For example, yes, while any individual can zip around google maps and learn information, wealthy individuals and corporations can access large amounts of public information and process it, turning it again into private information. This private information can then be used to enhance wealth, e.g. by estimating areas to develop real estate, mine resources, etc., in a way that individuals simply can not.
This all means that while individuals retain the power to observe their immediate surroundings, powerful groups, including foreign nations, are able to exert a power several orders of magnitude larger. They are in effect exploiting our individual right to observe and turning it against us.
It's also fairly weird that such data gathering corps are considered individuals in the same way one person with a camera is.