It doesn't take a rocket scientist or indeed an accountant to see that since the MAN based 330's were pulled the company slipped further and further into the red! (I know other outside factors have played a part in that.) IMHO they must've made a positive contribution to the bottom line! There was ALWAYS a belly full of cargo on the ORD and I'm sure it wasn't transported for free!
The company has been managed for personal gains for several decades and when the rot stopped BD was too far gone to be turned around without serious investment and restructuring. LH had neither the time or the interest in doing so. A sad turn of events for bmi, though completely avoidable.