I didn't realize it until contemplating this statement, but this applies to interpersonal relationships as well as nations. It is the root of tolerance and acceptance. People wind up where they are largely through circumstance, not intention. Circumstance may be as finite as meeting a person in a purely random situation who then goes on to change your life.
Yet we lionize persons we deem successful and study what led them there, rationalizing that the set of attributes that we can observe about them must be the cause of their success. And in speaking with them personally, you'll find, in many cases, impostor syndrome because they understand the randomness that played in their favor.
I make a conscious effort to keep that in mind. It helps keep me from becoming judgmental.