1. Because he had a father and grandfather who were 4 star admirals, John McCain got into and through the Naval Academy along with a pretty uniform to help him to get the girls.
2. Later his legacy helped him to bypass more qualified applicants to flight school and allow him to wear the golden wings of a naval aviator and get even more girls.
3. It helped him spin 20 hours of combat on 23 combat missions and 5 1/2 years as a POW, which were honorable but nothing more, into the image as a war hero.
4. All that was parlayed into a career in the Senate, the most exclusive good old boys club in the world. His blustery, picturesque Yosemite Sam Schtick has found a home there.