Idk...its hard to explain to someone who isn´t from italy. I´m from tuscany...we (Lucca, Pisa, Prato, Florence, Arezzo...)pretty much are known as the most arrogant pricks of all of italy...We look down on pretty much anyone. We respect Roma and Venice as well as Milano. That said we dont see the northerners from Tirol and Trentino as "real" italians. We call them "Krautis" because we see them as more "german".
Sicily and some otehr southern areas are the wild parts for us with less civilisation.
But Sardinia is the "bushland" for us.
and btw dont tell me its not same in turkey. This rival behavior between regions is not unique in italy. This even goes between cities in tuscany. My hometown Lucca for example hates Pisa with passion and they hate us.