Matthew Effect is more broad than that. It's from the Bible, about rich getting richer. It is in fact used in several contexts, also in intelligence research (smarter kids improve more from interventions).
Try the Gervais Principle, you will be surprised how good it is compared to Peter, Dilbert, Putt, and Shirky.
As an extra surprise:
Conquest's last law (contra Shirky Principle): The simplest way to explain the behavior of any bureaucratic organization is to assume that it is controlled by a cabal of its enemies.
Pournelle's iron law of bureaucracy (contra Putt's Law): In any bureaucracy, the people devoted to the benefit of the bureaucracy itself always get in control and those dedicated to the goals that the bureaucracy is supposed to accomplish have less and less influence, and sometimes are eliminated entirely. https://en.wikipedia.org/wiki/Jerry_Pournelle#Pournelle's_iron_law_of_bureaucracy
Conquest's first law: Everyone is conservative about what he knows best.
O'Sullivan's law: All organizations that are not actually right-wing will over time become left-wing. https://en.wikipedia.org/wiki/John_O%27Sullivan_(columnist)#O'Sullivan's_first_law
One more comment, since strategy and social dynamics are fun:
Lanchester's Law https://en.wikipedia.org/wiki/Lanchester%27s_laws
And its application to feminism https://en.wikipedia.org/wiki/Petrie_multiplier
And the critiques of it from Graeber about group size vs female ratio (this law will need to be coined) https://philosophybear.substack.com/p/movements-are-always-a-distorted
(possibly "the cycle of hobbies in a picture" could point this concept out but IDK)
l-K Equation of predator vs Prey (basis for Turchin's model) https://en.wikipedia.org/wiki/Lotka%E2%80%93Volterra_equations
Compartment model of https://slatestarcodex.com/2019/09/02/book-review-ages-of-discord/
It's Betteridge's Law of Headlines, btw. I know this because I am sitting on the sofa next to said Betteridge.