Hugmonster, I appreciate the point you are making and agree that a pilot commanding an aircraft in an emergency will do what he wants to do, and I shall do everything in my power to assist him.
However, if pilots routinely ignored ignored instructions from controllers in controlled airspace because they thought it wasn't safe, then anarchy would reign supreme. Pilots don't always have the whole picture with regards to what is going on around them. TCAS separation is not a legal separation standard,
I know what is going on in the airspace I CONTROL.