As I understand it, in Europe to register for a phone number you have to give some identifying info to the telecom so they know who the number is registered with. In the US, however, you can get phone numbers anonymously.
Get rich quick and clawing over others to get to the top is also relatively prevalent in poorer countries, those with great wealth/income inequality, and societies undergoing rapid economic transformation.
It's part legal enforcement and part culture. There are dishonest individuals in every country.
So I don't think this is the reason.