Indeed. Very good, son. But your Professor Sinistra's point is well-taken, Draco: Our Lord's beneficence extends to all who would rise above and beyond their circumstances as their inclinations allow.

Nor should we presume that 'loyalty' is the sole criterion - after all, you will note that your housemates Crabbe and Goyle are in this week's group and no-one could accuse they or their parents of any smirch against Our Lord or purity of blood. I think you will agree that their contributions are no less valuable, even if their company may be less than stimulating.