This is an important point IMO. Consider the Bystander Effect. Most people will act decisively, even heroically, when they're confronted one-to-one with an indi

This is an important point IMO. Consider the Bystander Effect. Most people will act decisively, even heroically, when they're confronted one-to-one with an individual in dire need. If, however, you put these people in a large group all witnessing the same pressing need, they will all stand by doing nothing. There are a few significant psychological processes at work here, but the point is that groups of people behave in non-intuitive ways that don't necessarily reflect the sentiment or intention of the individual members. We also see this in physical crowds; get enough people smashed into a small enough space and they lose individual agency and function as a fluid, with each individual carried by the wave and unable to control where they go. This results in stampedes and crowd crushes.