I think the one reason hereditary right for particular positions is good because it ensures stability, but means that people in power have the ability to learn and grow. They also have the power to ignore self interest groups from lobby because they don't have to worry about their money to survive.

I'm not saying traditional feudalism is good, but we're all lying to ourselves if we don't realize the concept still exists today. It's just been masked by a more complicated bureaucracy with a more stratified hierarchy. Everybody knows a Duke tiers above a count and a count above a baron. Nobody knows whether a senior accountant and ma and pas accounting is better than a manager at blank accounting firm.