As someone who is ignorant of this matter, why aren't the conversations privileged? Is it because the lawyer's represent the company and not the individual personally?
The way I had a lawyer relate this to me was along the lines of:
I ask a lawyer about the legality of specific acts I am considering. This is privileged conversation.
I send an email to someone else telling them to do something (which may be in violation of one or more laws). I copy legal counsel on the email and "request their input on their subject at hand". This is not privileged communication.