This is a very big oversimplification, mainly because the mafia is everywhere, probably these days they have even far more interests and investments in the rich

This is a very big oversimplification, mainly because the mafia is everywhere, probably these days they have even far more interests and investments in the rich north. The problem is the industry presence and the type of those (south was mainly low-skilled manufacturing and agricolture, both of which are being heavily delocalized by globalization leaving almost no well paying jobs in those regions)