More intelligent people by definition are able to make better decisions - you wouldn't be considered intelligent if your decisions were more often than not poor

More intelligent people by definition are able to make better decisions - you wouldn't be considered intelligent if your decisions were more often than not poor. So, to say that "wealth comes from intelligence" is false implies that, whatever it is that allows one to get wealthy, making better decisions is not the decisive factor... which I may agree with in many cases, but not as a general rule... and when measuring the wealth of a whole country, the general rule would certainly tend to dominate. Geography and resources availability also play a big role, of course, but as we can see easily, many countries that are quite unlucky with regards to those things still manage to score very highly on the wealth rankings - and perhaps not coincidentally, have high average IQ.