Every human is equally valuable in the moral sense.
But value is subjective when we are talking about relationships and we can only generalize about this value.
High income women are more valuable to low income men.
High income men already have money. They value other attributes.
And this is the paradox successful women can face. Their success doesn’t attract the mates they desire, quite the opposite. And worse, they were never told that. They were told the opposite.