Fundamentally, I think any functional society has to operate on the consent of the majority of a populace towards those who govern. Whether that consent is called duty, loyalty, obligation, tradition, culture, religion, divine law, or democracy. The only alternative to rule without such consent by the majority of a populace is through violence, repression, and the use of force which can only continue insofar as those promulgating violence in the interest of a ruling class consent to do so.
The Caldari State was formed due to a lack of desire to consent to rule of the Gallente Federation, and since Federal law was regarded as illegitimate over the Caldari people the only recourse was disobedience, and later violence when the Federation sought to impose their rule through the use of force.
I think, knowing and remembering this, Caldari leaders are wise enough to know that the consent of those they lead is vital otherwise the only other recourse is violence and repression which is a fragile and brittle thing.