Way back when I was but a mere chil' they were still making up 'jus' so' stories ~ and today that field is pretty empty. There are no major geneticists out there dwelling on sexual selection.
Did I tell you about Darwin's trip to the Gallapagos islands? Alone in his cabin, at sea for months, nothing to do but think about.......... well, sexual selection was one of his first topics .......... BTW, he didn't know about DNA!
Well, I do agree in principal that scientific theories should forever be tested and refined as appropriate wherever it leads.