Does IQ explain the opportunity gap between races?

In my previous post on Social Wealth a blogger responded claiming the opportunity gap between races is explained by IQ. Below is a quote from that blogger:

@lucylin (57) · 19 minutes ago
A interesting perspective.

The elephant in the room you didn't mention - IQ (East Asian, White).

This explains the differences far more precisely than 'social wealth', imo.

IQ/genetic differences illustrate the why the differences that are real, and manifest as they do.

Yet the statistics reveal these facts:

• Education achievement does not increase the odds of becoming a millionaire equally. Black and hispanic have dramatically lower odds than white and asian when it's the same education. So we know it's not a matter of being educated.
• IQ does correlate to higher incomes but it does not mean having a high IQ causes someone to receive a higher income. In addition, having a higher IQ does not mean net worth (which is different from income) will be higher. In other words higher IQ does not seem correlated with achieving financial independence.

An article on IQ and income from 2007 contains this quote:

The work reveals that while exceptionally smart individuals typically earn more, they are also more likely to spend to their credit card limit, compared with people of average intelligence.

A more recent article from 2016 which directly asks the question of whether millionaires are smarter contains this quote:

On the surface, Zagorsky’s analysis confirms the findings of previous studies linking higher intelligence with higher income. “Each point increase in IQ test scores is associated with $202 to $616 more income per year,” he says. For example, a person with a score of 130 (in the top 2%, in terms of IQ) might earn about $12,000 more per year than someone with an average IQ score of about 100.

On the surface, people with higher intelligence scores also had greater wealth. The median net worth for people with an IQ of 120 was almost $128,000 compared with $58,000 for those with an IQ of 100.

But when Zagorsky controlled for other factors – such as divorce, years spent in school, type of work and inheritance – he found no link between IQ and net worth. In fact, people with a slightly above-average IQ of 105 , had an average net worth higher than those who were just a bit smarter, with a score of 110.

So is there a link between IQ and net worth? I have my doubts. Many people who become millionaires do it on athleticism, or being entertaining, or being a wise investor, none of these activities require an IQ test. The IQ test could not predict Warren Buffet. The other thing to note is that high IQ isn't distributed by race. This would mean there should be a certain percentage of white, black, asian, hispanic, any group, which has geniuses of a very high IQ. If we look at the amount of billionaires we see also very few women, so does this mean white women have a lower IQ than white men and or asian men?

I'm not convinced that IQ explains the opportunity gap. This is because I see no evidence that scoring high on an IQ test opens a person to receive increased opportunity. It is true you can score high and join Mensa, or get a better position in the military, but nothing that I can see which guarantees millionaire or multimillionaire status or which even automatically would lead to such status. To be fair I welcome debate and if anyone has statistics to show that IQ is behind the opportunity gap they may be able to change my mind.