Why do you think the story, has the mother appeared as the villain rather than the father in "The Rocking-Horse Winner" by D.H Lawernce?
In D.H. Lawrence's "A Rocking Horse Winner", the use of the mother as the villain rather than the father, must deal with the fact that society sees a mother and her love for a child as unconditional and that she will do all she can to protect her child. In this story, the opposite holds true. The mother will do all she can to maintain her sense of position over that of anything else, including her love for her son. Readers might be willing to accept a father who might be willing to give up his son, but the idea that a mother would do that is totally unacceptable in today's society.