I wonder if it's just human nature for people to think that, because someone's property has been ruined/burned, they can just go pick through the debris.
I mean, the common thought is that these are all just thugs, criminals.
But I look back to when the house across the street from me burned when I was in high school. I remember being curious the next day, and walked across the street. There were several cars there, and people walking out of the house with guns, cameras, etc. I just thought it was family.
It turned out that these were just opportunists. Looters. But they didn't look any different than the people who lived in my neighborhood.