Women choose who to have sex with!
Women can only have a limited number of children.
Men can father thousands.
Women make themselves attractive to lure in as many males as possible and then select which is the highest status male available.
Men home in on females and choose the highest status available. They are not so choosey.
Women are selecting mates for their genes. They want a high status male with good genes to join with their own so that their children have better survival opportunities. Women look for quality.
Men look for quantity. The more women they can impregnate the most chance they have of getting children (genes) into the next gene pool.