Why is there some effort here to paint WizIQ's offer as a negative thing? WizIQ are being generous with this offer, and if it doesn't apply to you, Marcus, then leave it alone. There is no rule or law that says they have to offer the same privilege to everyone, and it is gracious of them to offer it to academics and people who work for non-profits. Teachers are some of the most underpaid people (in the U.S., at least), and people who work for non-profits usually make slave wages, if anything at all.
It's not fair to bring your grievance about needing to pay for teacher membership here, to this issue. They are separate things, and not connected.