I relate it to that desire to want to show yourself morally superior, slacktivism abounds precisely because it makes you feel and look good despite the fact that you do not help at all or even just make the situation worse, those who have that vision of activism are the only ones who could lecture you for that, atrocities happen all over the world every second and it is not worth exhausting yourself physically and mentally based on indignation for things that you cannot change, especially when there are also many problems in the place where you live, it is a defense mechanism that we all use unconsciously to a lesser or greater extent.
You have to act with your brain and not with your heart in these cases, if you can help, do it no matter how small the contribution, but in a substantial, it's not worth making noise and then leaving, often making the problem worse just because you wanted to pat yourself on the back, does anyone remember the cases of Kony, bring back our girls or the suicide of Rina Palenkova?