Let's not begin with the world first, let's start with individuals who have a lot of money, and before I go into that let me say this, if you have money you're considered a really powerful person, people respect you and don't respect those without it at all.
And those individuals with money, why do you think they made their money, what was the purpose, well I'll start with some I know, most of them made money because they were poor as a child, most were lucky most were maltreated and swore never to be weak and guess what comes to their mind when they think of having revenge on the people that maltreated them, well having a lot of money, so now, what do you think, half of the world's population believes that with money comes great power and respect, and too bad its true, money can solve the worlds problem, but one sad truth is there, people with money tend to keep it to themself, and I refuse to believe that its because they don't want to help people, even though for some it's the case.
But its just nature, the world's balance acting, because believe me, if everyone had .only the world would not be balanced, and that's why nature and reality made it so hard to make money.