It really depends… there are a few near where I live with VERY nice houses and very average cars… visited a few… the ones who take care of their families also take care of their houses I’ve noticed…
There are a large amount of lebanese immigrants though who live like some you described… their houses are in terrible shape and they put everything into driving a blinged up sports car… they also treat their families terribly…
But I wouldn’t put it on their religion, more the state in which their families immigrated… a lot of the people with good cars and crap houses and crap attitudes, their parents who immigrated were illiterate in their OWN language, had very few employable skills and so lived on welfare all the while feeling resentful for being unable to be productive with the skills they had, their kids were raised with that feeling every day…
But it’s not the religion, other kids have turned out in a similar way who have a different religion or NO religion but had family issues because their parents wasted away the best years of their life and never got good enough at anything to provide a good upbringing OR a good role model/mentor. And kids who, when they go to school, have to walk or are driven in a shit car where all their peers can see, and they need to feel important, which leads to them buying blinged up cars and being dicks…