One-Third of Employees Violate Company IT Policies
BaCa writes with a link indicating that a survey of white collar US workers shows that something like a third of all employees break IT policies. Of those, almost a sixth actually used P2P technologies from their work PCs. Overall, the survey indicates workers aren't overly concerned about any kind of security: "The telephone survey found that 65% of white-collar professionals are either not very concerned or not concerned at all about their privacy when using a workplace computer. A surprising 63% are not very concerned or are not concerned at all about the security of their information while at work. Additionally, most employees have the misconception that these behaviors pose little to no risk to their companies."
What you do not have is a "civic duty" to break the rules set down by your employer. Go ahead and do so, I don't care, but don't make yourself out to be a hero because you're doing it. You aren't. And this isn't even getting into how some of the "violations" you list are ridiculous, and are also well within a company's rights.
"16MB (fuck off, MiB fascists)" - The Mighty Buzzard