Chaval on the way things have come to today.
You are completely right, but this is not a CC issue. Other Yeshivos may ask for $x per year whether it comes from a wife or in laws. CC asks for no less than any other Yeshiva, just that it comes from a wife instead of being handed a check every month.
As a side issue, if you are completely certified in education, do you work for the BOE? Bacause I have heard they pay much better and give benefits.