Okay, I understand now....and agree. Thanks for clarifying. I still believe that he had much darker reasons for wanting to end her life than just an obsession with money. That said, I get your point.
So do I. I wasn't suggesting that money was the only motive, or the main one. Only that it was always part of the mix.
The way he treated her was cruel and vengeful. He hated her. He obviously did indeed have darker motives. Money always tempted and twisted him, but hatred drove him.