No, I don't agree... I think she is part of a network whether formal or informal and maybe connected to religion. I suspect there is a lot of back scratching going on.
I am not as willing to let the Smith's off part of the hook so easily because I can't find an explanation for all their lies, obsfucation, obstruction, media mongering, and lack of concern for other parents. One of her own daughters isn't buying her stories. Her ex says we don't really know what she is about. The father of the baby they adopted says they were deceitful. People online are chastising her for being unethical.
I believe in Occam's Razor, but any theory has to still take into account what is known. At the least, I think they pushed Elizabeth and probably engaged in some illegal activity. I don't think she cared as much about Gabriel being theirs as being somebodies besides Elizabeth - like I said, it could be back scratching, it could also be that she is playing god and think she is better able to decide who should be the parents of a child than the courts. I suspect she is supporting more unethical surrogacy and adoption than just Gabriel's, whether directly making money off it or not.