for me there are two issues really.
The first is that it is seemingly mmuch easier to adopt if you have money. Now I don't really care if madonna adopts a child, or Angelina Joley or anyone else who is rich for that matter. I think it's not actually that uncommon to feel that you want to give a child a better life, and if you have wealth then you would be in more of a position to do so.
But if Madonna wants to adopt then she should, IMO, go through exactly the same process as anyone else. And that includes the home studies, the ss intrusion into her private life, the meetings with other potential adopters and so on. And she should have to meet the exact same criteria as anyone else going through the adoption process. So in short, if Madonna didn't have money, would she be approved as an adoptive parent? If not, then money should make no difference, if so, then fair enough, but the process shouldn't be hastened by the financial side.
My second issue is with this notion that if Madonna wanted this child to have a better life, she could just give money to her family (from her vast wealth).
This notion is very flawed. These children, while potentially still having living relatives, are in orphanages. If someone like madonna started giving money to the odd family to bring up their child, the result would be a massive increase in the amount of children placed in orphanages in the hope of gaining financially. Giving money to individual families is not a pheasible solution at all.