Board Thread:Boruto Discussions/@comment-26431570-20180601021041/@comment-26568893-20180601032326

Temari and Shikamaru aren't exactly the most moral and upstanding people around. Shikamaru is notoriously uncaring because of his laziness and Temari smiled a lot while fighting people to death or almost death in the first part.

Boruto isn't important in Shikamaru's objectives because he is just the son of the Hokage. Any ninja can succeed Naruto, that's what he thinks. If he dies, well, let's bury him, let Naruto mourn, and let business continue. In the shinobi world, the strong live, the weak die.