After Goldy elf-popped away, Harry explained his thought process to Hermione: "In Gringotts, when I learnt that Lucius Malfoy basically arm-twisted Crabbe and Goyle into becoming Draco’s bodyguards, I lost my disrespect for those two, because they weren’t bodyguarding Draco by their own choices. Forgiving the debts is easy, because now it’s money that I as Lord Crabbe and I as Lord Goyle owe to me as Lord Malfoy. I could just as easily have paid off the debts, but this would mean less money for Zelda and Bertha to spend on their families. But either way, Vincent Crabbe and Gregory Goyle, and especially Galina Goyle, deserve to breathe free, completely done with Lucius Malfoy’s shit."