Parents of the rich ger will dislike the poor guy's background.
Hence, parents will disapprove and nag at the ger...
Parents of the poor guy will dislike the rich ger as they will
think she is too high class for their poor son. Parents would want
poor guy to be with poorer girl, more simple, more willing to do
house work, etc. Hence, parents will disapprove and want to poor
guy to go out with a poorer girl instead.