If they are privileged enough not to care then they may be benefitting from the status quo; it is hard to dissuade someone away from this if they materially gain from exploitation.
Being "neutral" with the staus quo is supporting it; being apolitical in the context of an exploitative system is taking a political stance that they are not vested in changing it.
On the other hand it may also be due to alienation and the empty nihilism of an overbearing crushing system; these folks, however, often feel there is not much that they can do so they are not truly apathetic just dejected.
Some people are just empathetically immature; you have limited time in your life on where you want to emotionally invest in guiding a person to the light.
/edit: spelling/clarity