Draco seems to believe that Hogwarts is an impregnable fortress, a secure base for whatever power Dumbledore wants to project. Headmaster of Hogwarts appears to be a title awarded by the Wizengamot, which also elects the Chief Warlock, and Draco regards it as a significant increment to the power of the Chief Warlock. Its function as a boarding school may be secondary and incidental. :)
Draco seems to believe that Hogwarts is an impregnable fortress, a secure base for whatever power Dumbledore wants to project. Headmaster of Hogwarts appears to be a title awarded by the Wizengamot, which also elects the Chief Warlock, and Draco regards it as a significant increment to the power of the Chief Warlock. Its function as a boarding school may be secondary and incidental. :)
Hogwarts is more like a university than most boarding schools.