I had an experience with a national meteo application including facebook trackers. I complained and they replied that they were totally unaware of that fact. The tracking was added by default by the contractor as part of his standard template. (note: they removed the tracking after my complain).
But it is also about people in charge, who are completely addicts to statistics about the number of visitors and all information. People like to track others. They actually want that.
The sad part is that nobody in IT really complain nor tell them that it is creepy. We install blockers on our own computers and get over it, writing code that track those without blockers without batting an eye.
