Because the residents are Bad(tm) and need to be punished. These standards only seem to apply to America and Europe. Does anyone have a counterexample outside

Because the residents are Bad(tm) and need to be punished. These standards only seem to apply to America and Europe. Does anyone have a counterexample outside of America or Europe where the underclass is allowed to live side-by-side with the rich? I've never heard of one but perhaps I'm ignorant. Most countries seem dead-set on rejecting any and all immigrants that don't bring $500k+ along with them.