I've lost the link to the blogger who first posted this, but it needs repeating.
There's a thin veneer of hyper-competent professionals who keep the lights on and the water drinkable. Replace them with the incompetent and the water turns brown and the lights go out.
A pure meritocracy is absolutely essential to a high tech society. Have a look at South Africa to see what happens when this principle is abandoned.
I am thinking of the undeniable water in flint Michigan
80% of the work is done by 20% of employees at just about every organization. Might be 90/10 in the next 10 years.