"The human hunter desires the biggest male with the biggest set of horns with subsistence meat as just a messy sidelight."

Above, was my main issue with your original comment; it's a rather hasty generalization, and in my own personal opinion, largely inaccurate.  Furthermore, it's an insult to hunters whose sole purpose is to put food in the freezer. 

"The meat quality in a herd or species will decline as seen in the modern herds decimated by the human selection of biggest in body and horns."

The above statement is a pretty good indicator that you do not hunt.  People who hunt for food do not target the biggest and baddest of the bunch.  For starters, it's more work.  Second of all, the quality of the meat is far less desirable than that of a younger animal.  In other words, these "gene pool giants" don't taste too good.    

Let's just agree to disagree.