I have seen in the news that a wasp weighing less than 1/10 of an ounce, just by its very presence, can cause the destruction of an automobile 80,000 times its size and weight not by using its only weapon its stinger, but simply by being a distraction in the wrong place at the wrong time.
I have watched a clueless wasp or wandering bee destroy the atmosphere at a meeting full of intelligent adults or a class full of good students. It can do this despite its size and apparent lack of power even when surrounded by beings thousands of times larger and more powerful than itself who must intellectually know that if push comes to shove in the end the wasp can’t win.
One continuously disruptive student or adult can do the same thing to a class or a business.
One committed leader or teacher can neutralize these threats and in the case of the truly gifted leader/teacher turn them into a positive.
If a tiny wasp can do these things against all odds or any fearless person no matter how small with something as simple as a rolled up newspaper or an open window can solve the problem don’t try to tell me that one committed person can’t make a difference.