Imagine two women swimming in the Olympics. One of them might be 1/100th of a second faster than the other, but she gets all of the gold medal. Ten companies might pitch a potential client, but only one of them will win the project. You only need to be a little bit better than the competition to secure all of the reward. Or, perhaps you are applying for a new job. Two hundred candidates might compete for the same role, but being just slightly better than other candidates earns you the entire position
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The 1 Percent Rule states that over time the majority of the rewards in a given field will accumulate to the people, teams, and organizations that maintain a 1 percent advantage over the alternatives. You don’t need to be twice as good to get twice the results. You just need to be slightly better.
The 1 Percent Rule is not merely a reference to the fact that small differences accumulate into significant advantages, but also to the idea that those who are 1 percent better rule their respective fields and industries.
-- https://jamesclear.com/the-1-percent-rule