T1 call center is a dead-end job that nobody does by choice. Who cares what the performance goals are, do they fire for not up selling? yes/no
There is no air quote marks around safer. It is so, empirical data tells us without a doubt. You rigid rule-following is getting in the way of your unstated goals of being the safest possible driver. YMMV.
Not all users are created equal. I've been running Win7 on my desktop for years, without an anti-virus, and never got anything.
Java/Flash are crap security wise, and many Win users run full admin and trained to click 'Allow' to everything completely negating OS protections. Do the same on Linux, and you will be in as much trouble.
'Antivirus' signature-based solutions are largely ineffective at mitigating anything. You should just use hostfile-based blacklist and secure your java/flash.
An authority is a person who can tell you more about something than you really care to know.