The interim Ministry of Magic, in the aftermath of the war, gives heroes of the war a lot of say in the restructuring of their world.
Harry’s priorities lie in clearing the names of people who were Imperused or deprived of choices during the war, and convicting real Death Eaters and sympathizers. Hermione wants to put a new system together, the most effective system possible, one that will allow everyone a voice. Ron’s main concerns are with the Muggleborn registry, destroying it as unceremoniously as he does everything he believes in.
Of course, the Malfoys, the Cattermoles, and all the House Elves who were exploited in that war and all the past ones receive a bit of special attention.