You can try that. But you may find you alienate the allies who could help you to make that one thing better, thereby making nothing better. An even-handed approach seems moral, but if all you do is complain equally about everyone who doesn't fit your strict moral standards, you won't do anything useful in the real world. Sometimes, you have to pick a fight and not be too purist about choosing your allies.
Because I have limited empathy and scope insensitivity.
If I'm emotionally burnt out about the crimes of a strongman like Putin who I have zero ability to change how will I put pressure on my local police chief to fire bad cops?