Remember that they still have to follow the "USA Privacy Law" And they can not get your personal data this is called Phishing, also it sates that if it becomes an embarrassment that also breaks the privacy law. The most they could do is search your computer for processes, hooks, and other things besides certain information.
Besides if it did collect certain data for search through your computer with out Admin rights it wouldn't happen, also if it did collect certain data i'm sure your anti-spyware or anti-virus would have shown it as an virus.
Also another rule that would break the law they can not sell certain information to third parties.