I have my doubts about the 'secret society', but lets say the rest of your post is true. That still does not disprove that tech is a meritocracy. If you want to talk about  systemic issues that are preventing women from achieving their full potential in tech I'm all ears, but saying that tech is not a meritocracy is saying that there are women who are elite and are still getting turned away at the door by the gatekeepers at Microsoft, Google etc. There is no proof that this is happening.

 Nobody doubts that black people have the ability to succeed at hockey. There are plenty of elite back players already (Subban, Igilna, Jones, Simmonds etc).
The reason why they are not in the NHL in greater numbers is lack of access/lack of interest. Not enough rinks in their communities, cost is high, they prefer football...whatever the case. They don't demand spots in the NHL simply because they have the potential to be good, because that's not how a meritocracy works.