When the Hexanjager Order was formed and brought the evil magic users low, they were loved by the people, but, just like many a group of vigilantes, they went too far and now their rule is just another form of oppression.
The Knights of the Holy Sun are the militant arm of the Jovian Church, dedicated to His Glory, and are well known and admired by many for their bravery in battle.
Elves are not actually aloof. They are actually extremely family-based and insular, and often intermarry inside their families, making them uncomfortable around those not of their family. Therefore, they shield themselves behind pretended aloofness and coldness until they are comfortable in others' company.