It's not like the poor are not intelligent or that the rich are smarter, it's all about determination, seeing opportunity and recognizing such opportunity.
Also most poor are only concerned about seeing food on their table, once they have something to eat, then they're fine but this is not the case with the rich, they don't stop. They keep finding ways to make more money and it's that determination to make more money that keeps them going.
And I also believe that no one is destined to be poor, Yes you might be born into a poor home and that is never a ticket to poverty.
Getting Rich requires hardwork and determination, getting poor requires nothing, absolutely nothing.