I'm convinced that Michael has some financial windfall as a result of becoming a widower. He either as a book offer type thing or a promise of cash from the funder of care for Terri's life. He gets a big pay day when she does BUT only if they are still married.
The neocommunists and other America haters are in this as well to build the cause for the abolition of the death penalty. They don't care about the individuals so they have no problem sacrificing Terri for their cause. After Terri dies, they will chide the Christians and Americans for NOT protesting as hard for opposing the execution of Pedro the Axe Murderer.
Don't forget Terri worked for an insurance agency. You can bet hino has a hefty policy on her. He's got to find a way to pay for those two new Mercedes he and his mistress recently bought.