One way is to think "wow, those people have had very different experiences from me, to drive them to do that." I'd put your reply in that category and I prefer this. It recognizes shared commonality among people, which is a good place to start for constructive change.
The other way is to think "wow, those people are nothing like me, to want to do something like that." This treats differences as inherent and implies there are different "types" of people. It creates a sense of "us vs them," which makes it harder to build the empathy necessary for constructive change.