This and also, "Wait, so you didn't do anything when ... ?"

It gives you a new found level of empathy or, at least, understanding for the people throughout history who "should have done something". We all (well, most of us) grew up thinking that if we were a workaday German (fill in the conflict) with Jewish neighbors that we'd have obviously hidden them in our attic or whatever. It turns out the reality of taking that class of action is actually a lot more fraught that your 4th grade self thought it was.

Would you harbor a neighbor facing deportation to some far flung prison camp? You have to be willing to face the consequences of losing your home, job, liberty and life. If not, what would change the calculus enough for you to do so? If you know they're in your country legally? If they were pregnant? If the prison was rumored to be executing people?