Name someone more misunderstood historically than Brutus… The man was raised to know his family's place was king killing and when his friend chose to try to be a king he did what was required
Nailed it!
Just like in nature and agriculture, monocultures are vulnerable. One disease can wipe out an entire population. Same principal can be applied to almost anything.
That's the exact thesis proposed in The Dictator's Handbook by Bueno de Mesquita and Smith for making a government good for its constituents. Coalition size is THE most important feature.