Why Floyd Mayweather's perfect mark doesn't get respect it deserves

LAS VEGAS ? Americans love watching record chases. Even though Barry Bonds was a pariah and considered a cheater by most when he finally zeroed in on Hank Aaron's all-time home run record, the nation was glued to the chase. Reporters followed Bonds from city-to-city, ready to chronicle the history-making blow. It was the same when Cal Ripken surpassed Lou Gehrig's mark for consecutive games played, as it was when Kareem Abdul-Jabbar was going after Wilt Chamberlain's NBA career record for points…