If I had a law firm then maybe I would want to work with my wife, so I want a lawyer as a wife.
A doctor makes a lot of money and tend to be very bright, so I want a doctor as a wife.
People in certain professions are respected more than others.
Maybe my family has a history of being engineers so I want to continue that with my wife.
There can be other reasons too.
So do u want a wife who will be a good earner, is that what u r saying?