With the exception of the brothers in the mafia or brother terrorists, none of your examples would meet that standard.
Being close with your family does not mean you’re not a good person elsewhere. It does not mean you don’t care about strangers. That you’d jump to that conclusion or bring up terrorists as a counter example makes me question your own personal experiences.
All else being equal, I’d expect someone with close family bonds to the point of living with them as an adult, when they clearly have the economic means to do otherwise, as a sign of a good human. That’s been my personal experience and that’s how I see the world.