The Fight Within

I have been wondering why we take medicines to control fever. Intuitively it seems to me that a mild fever is one of our body's defense mechanisms to fight off the invading micro-organisms. And this seems to be corroborated with a quick online search. A quick excerpt :

Why do we have fevers? The most likely answer is that fever represents part of the body's immune response to infections and that it is somehow involved in controlling the infection. The details of this are not fully understood. The point is that the fever is generally not harmful in itself, unless it's very high.

Of course if the fever runs too high it, might cause brain damage which becomes a real threat around 105 degrees IIRC. That makes sense. But why do we run for those pills if the mercury fluctuates even a teeny bit north from normal? Are we second guessing the body's defense mechanism, suspecting it is confused about what it is doing? Or is the notion that we want to avoid any discomfort caused by the fever at the cost of sabotaging the defense mechanism?

Surely there must be a convincing answer since most of us have used fever controlling medication in our adult lives at one time or another. And big pharmas surely invest (and gain) billions of dollars from the global antipyretic drug market alongwith advertising and educating the public about it?