A real life example demonstrating the value of questioning the Status Quo...
In his book entitled The Periodic Table, an Italian chemist named Primo Levi tells a comical yet telling situation he experienced working in a varnish factory in the 1940s. He noticed that the company's recipe for varnish included an onion, and this peaked his curiosity.
He couldn't figure out what value adding an onion into the mixture would provide, so he inquired around the factory. As it turned out, none of the laborers nor any of the management could explain the reasoning, only that this had always been one of the core ingredients and that it was vitally important.
No one knew
Even the fellow in charge of ordering onions for the factory was oblivious to the reasoning, but was assured by the fact that the recipe had been the same for generations. Levi thought there must be a reason that someone can explain, but none at the factory could help.
Making matters more difficult for Levi was that the man who had developed the recipe no longer worked at the factory. There was no one left who truly knew why the onion was required, yet none who remained that found value questioning the successful recipe.
Finally some answers
Unwillingly to let his curiosity be stifled, Levi eventually tracked down the originator of the varnish recipe who had long since retired to ask about the onions. As Levi explains,
"My predecessor, who was then more than seventy and had been making varnishes for fifty years, smiling benevolently behind his white mustache, explained to me that in actual fact that when he was young he had boiled the oil personally. Thermometers had not yet come into use; one judged the temperature of the batch by spitting into it, or more effectively, by immersing a slice of onion in the oil. When the onion began to fry, he the boiling was finished."
With the passage of time, what was simply a crude measuring device morphed into what was believed to be a vital ingredient, bolstered by the fact that everyone agreed. Only Levi had the courage to question the status quo, and as a result reduced the company's annual onion expenses to nil.
As George Patton once pointed out, "If everyone is thinking alike, then somebody isn’t thinking."
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Source: The Periodic Table by Primo Levi