I feel as though as viewers we are supposed to be rooting for the Russells. I think the differences highlighted by the way Bertha knew about George's dealings and supported his actions whilst knowing they could lose their fortune were deliberately contrasted to the Morrises, where the wife had no knowledge at all about how dire their situation was and would never have said 'we can raise another fortune'.
To me that was meant to make me feel as though the Russells were the better couple, romantically, financially and supportively - but they are just so unlikeable. I really only like Agnes at this point. Marion is vapid and Ada comes across as a simpleton (I would love it if she were scheming behind the scenes and it were all an act).