I know my example is a little extreme, but it's kind of what GCHQ and NSA do, too. They use their powers maybe 10% of the time to look for terrorists and whatnot, and then the other 90% to get data on everyone, including people in power that they can blackmail and influence. Don't think this is just a theory. There have been articles in the UK press about MI5 for instance covering up child abuse by politicians because they wanted to blackmail them with that. Enough said?