The board feel that it would benefit all attendees if the delicate issue of morality was explored and some agreement reached by all houses.
Is assisted suicide, murder? Is the executioners act really morally reprehensible?
Do all inhabitants of Sirius deserve the same rights and treatment? Should the known pirate wounded on the street be given the same medical attention as an upstanding legal citizen?
Some people believe in cosmic balance: that our galactic environment should be treated with the same care as planetary environments. Is it wrong to exploit our surroundings? (to their detriment. Regardless of the consequences.)
All human life is sacred. But what of alien life? Should a non-human be afforded the same rights as you or I ? Of course not, but these are the ambiguous points upon which a clear decision should be made so people make take clear legal action now, and for the sake of generations to come. Would you attribute the same rights to an alien as an animal?