Why make the assertion that wealth is the underlying cause? I think it's more likely that it's more religion -> less wealth -> poorer health -> lower IQ. Afte

Why make the assertion that wealth is the underlying cause? I think it's more likely that it's more religion -> less wealth -> poorer health -> lower IQ. After all, ultimately, wealth is not a cause, but an effect. Wealth is produced; it doesn't fall from the sky.