Quoting Captain Obvious:" The bitch just wanted more money. I don't think it had anything to do with moral convictions."
Perhaps. That doesn't mean anything though, it's still her body. Being a surrogate doesn't mean you not longer have rights over your own body. No matter the reason she chose not to pursue the abortion (and I believe it probably was moral to some extent, or when they refused the 15k she would have taken the 10k.). That's like saying if you want an abortion out of spite you can't have it, or if you get pregnant out of spite you HAVE to have an abortion. No. It needs to be a womans choice no matter what reasons she has for making that choice.
Surrogacy is a risk. If you choose to employ a person for the job, you undertake a risk. You are trusting someone else to do what you want, but you don't, and SHOULDN'T have rights over their body.