The advantage is likely mainly an eugenetic one, but also one of sortation: Decision about power should be based on competence. A means of removing incompetent

The advantage is likely mainly an eugenetic one, but also one of sortation: Decision about power should be based on competence. A means of removing incompetent people is bullying them out. This is unlikely to be very effective though because mostly it's not the most competent who bully the most, but it selects for criteria like resilience, disagreeableness. Though conversely, means of avoiding bullying could also result in poorer sortation as people can strategically pull the bullying card to get ahead. For this reason such measures should be treated with caution, I think. Especially when it is about jobs concerning critical infrastructure.