Speaking for myself, I feel outrage! Not sure how people repress this anger, except turning a blind eye to these atrocities.
I guess it is because we see things and respond differently.
Not everyone understands social phenomena such as poverty in the same manner. This leads to different reactions even if there is agreement that there is a problem.
One is likely to get angry if an injustice is seen as having been done purposefully or as a result of negligence. This is especially so if the victim is seen as innocent and undeserving.
A person viewing the situation as an inevitability, an existential reality of the human condition, will more likely respond with sadness.
If one takes it as a matter of a personal responsibility, then feelings of guilt are likely to ensue. If I notice and offer nothing to Lazarus, well that’s not so good, whether I care or not.
There would be no problem if anger, sadness and guilt had any nutritional value, but they don’t. They are there as a call to action, in whatever way that is in the person’s capacity. IMHO the problem of determining what one can/must do is resolved in maintaining a loving attitude, adhering to Christ’s two fundamental commandments.
However, if one continuously experiences anger, sadness and guilt, one should be also open to the possibility that one is depressed. In that state, the mind seeks out aspects of reality that conform to and justify those emotions. This is not to advocate the use of antidepressants etc as a cure for the human condition, but sometimes they help us to act.