If I Had to Pick One
That’s really difficult to answer, because they’re all very important. Each of these principles works with and reinforces the other.
But I suppose if I had to choose one, it would be enforced male chastity and orgasm control. Everything begins with that.
A man whose penis is locked up and prevented from achieving full erection, and whose orgasms are strictly controlled by the woman he loves is much more respectful and loving and attentive to her needs. It makes him want to worship her body. It makes him crave the smell and taste of pussy, and every other part of her body. It strongly motivates him to please her, and put her pleasure above his own. It makes him much more receptive to receiving the strap-on. And it makes it easier for him to submit to corporal discipline. Once he gets the message that he only gets to cum when she permits it, he will do almost anything for her. That’s certainly been my experience with my husband.