After having worked at Google, it is the only company I actually do trust with my data. (But I am also ok with them using it to customize my experience, and even target ads) Their internal privacy controls are extensive. As a human, it is nearly impossible to access someone's data, even when debugging code/ML models/etc. And when you do need to, it requires exhaustive oversight/approval, and _everything_ is audited.
I'm an Xoogler who worked on the privacy team a few years ago. All of this is true, and at the time I worked there, I made the conscious, considered decision to buy in to the Google data collection ecosystem because I trusted the people I worked with to protect my data. Several years out, I no longer trust Google - not because I trust my former (immediate) coworkers less, but because the direction the entire advertis…
It makes me uncomfortable that the data is always there, and the direction of the business just needs to change. Perhaps they're not being profitable enough for wall street? And on a time scale of 10 more years, I'm sure there will be a number of "incidents" in which teams were given approval to use the data in unsavory ways.