I can articulate many viewpoints extremely clearly which I don't happen to hold, which means if I am in a debating mood I can much more precisely debate someone, rather than simply dismissing them.

I repeatedly realize my own opinions are sometimes based on unexamined assumptions, which no matter how many times I realize it and try to root it out, keeps coming to my attention over and over.

I repeatedly am reminded that almost everyone believes they are acting morally, and it is humbling to try to understand the morals of the person who seems so "immoral."

I often am floored when I realize just how different my lived experience is from the person who has formed such a puzzling belief, and it massively broadens my perspective to learn about those narratives.

These are just a few things off the top of my head, I bet I could think of many more.