He couldn't tolerate anybody disturbing children's lives for the sake of money, because he was a very moral man.

moral 是形容词，意思是"道德的、品行端正的"。这个词来自拉丁语 moralis，与"习俗、品格"相关，指符合社会道德标准的、正直的行为或品质。在句中形容这个人的品格高尚，坚持道德原则。