I guess when Marcus Aurelius was saying that, he did not have to deal with corporate crime as much. Also, law was a little different back then to say the least. To paraphrase him by today's standards would be something along the lines of "poverty is the mother of "hands on", "violent" and direct "person to person" crime". As a rule of thumb, we do not normally see rich people mugging in dark alleys or breaking into people's houses. Also, these waves of rioting we see lately are not because of extra disposable income people do not know what to do with. Make people feel like sh*t and they will try making everyone around feel like sh*t just to get even. That is almost biblical.