No, it can't. Mafia won't allow it and every decent human being born out of that city moves out of it sooner rather than later
Only city in the EU that I've felt unsafe in, granted I was only passing through so that feeling was probably just a manifestation of the city's reputation.
This reputation might be undeserved, at least as far as technologists and startups are concerned, but it is still something that would influence my decision on whether I'd move there or not. Other tech hubs in Europe, such as Berlin and Amsterdam, does not have that kind of reputation.