There seems to be a moral in S.A. that means must justify the ends. Taravingian (sp?) and his diagramists have the good of mankind in mind, but they use immoral means to achieve it. Kaladin was planning to assassinate Elokhar for good reasons, but this action was immoral and he was punished. Not only do I think Adolin is going to end up evil, but is action caused him to not get a spren like everyone else in his family.