[baruchel]

From a security point of view, there is no difference between being able to access your data and actually doing it. You may picture such or such company as better than another one (and maybe it is, though I strongly doubt it) if you want, but behaving yourself as if that company really cares about your privacy is extremely naive.

I would rather suggest firmly believing whatever company you chose is spying you (be it true or not), and adjusting what you can accordingly (settings, apps, usage, etc.).