Many observers who say that they cannot understand how anyone can be worth $100 million a year do not realize that it is not necessary that they understand it, since it is not their money.
All of us have thousands of things happening around us that we do not understand. We use computers all the time but most of us could not build a computer if our life depended on it -- and those few individuals who could probably couldn't grow orchids or train horses.
In short, we all have grossly inadequate knowledge in other people's specialties.
The idea that everything must "justify itself before the bar of reason" goes back at least as far as the 18th century. But that just makes it a candidate for the longest-running fallacy in the world.
Given the high degree of specialization in a modern economy, demanding that everything "justify itself before the bar of reason" means demanding that people who know what they are doing must be subject to the veto of people who don't have a clue about the decisions that they are second-guessing.
It means demanding that ignorance override knowledge.
The ignorant are not just some separate group of people. As Will Rogers said, everybody is ignorant, but just about different things.
Should computer experts tell brain surgeons how to do their job? Or horse trainers tell either of them what to do?
— Thomas Sowell; Dismantling America