Citation needed.
> How rich or poor a country is doesn't really imply how safe.
Well, only because that's measured in a way that means Bill Gates could make Tuvalu the world's richest country simply by moving there. That has no bearing on whether rich people are safer – and whether extreme poverty makes people more of a risk to others.
Crime is something a person does, not who they are. When people do things, they do them for a reason. The most common reason for street crime is extreme poverty, and the most common cause of extreme poverty is white-collar crime.
You lost me there. Do you mean that a) of the set of extremely poor people, most are extremely poor because they've been the direct victim of white-collar crime, or b) white-collar crime as a whole is the leading cause for extreme poverty in a society?
Both interpretations seem very wrong to me. Do you have any data to back up that assertion?
Criminal is not a race. It is not a class. It is not a profession. Nobody is a criminal until they do a crime, and anyone can do a crime.
Most crimes are done by poor people in desperation at great risk. The most harmful crimes are done by rich people out of greed with very little risk.