I did give you the example of african americans, with their 85 IQ. It seems to be the case that they just aren't that good at math, or inventing stuff, nor do they have an interest in how things operate which is part of philosophy and science. Nothing wrong with this, nor does this make them inferior. They are just as capable of becoming a waliullah. Only if you subscribe to the western mindset that only measures superiority on ability to make money by 'manipulating matter', as in industry, which requires mathematical ability, financial shrewdness and inventiveness. It's only in a society that values these kind of things that such people would feel inferior. So the problem lies with society, for not emphasising things like spirituality which everyone is capable of, and overemphasising things like mathematics which not everyone is capable of.