Answer:
to inform readers about the ways young people are changing the world.
to entertain readers with a story about high schoolers who made a change.
Explanation:
In some cases like the word vice, the negative connotation stems from a direct definition of the word(vice means wicked, but another definition is 'a substitute for' so 'vice president'). In other cases, word may be used in a culture to identify a group or individual that is portrayed negatively, thus modifying the inherent definition of the word to better portray how society thinks of the word.
A complex situation that often involves an apparent mental conflict between moral imperatives, in which to obey one would result in transgressing another.