(as a pilot, not an instructor)
In what way are instructors not pilots?
There is always this suggestion that instructors are too much "by the book", that they have no sense of "commercial reality". This implies that they are too "careful and slow" in normal opertions and don't accept the "requirements of the real word". This I assume meaning: carrying defects without writing them up, flying overweight and ignoring flight & duty limits.
Then elswhere you will find posts about dodgy GA operators, paying nothing and "forcing" pilots to fly overweight, with defects and out of F&D limits....