Well, principally luck.
Both Georgians are suspected of driving under the influence. Scott, though, is accused of barreling through an intersection and killing young gubernatorial intern and Augusta native Jordan Griner.
Evans, the University of Georgia athletic director, got off worlds easier. He was lucky enough not to kill anyone.
Yet, Evans arguably had an even greater obligation than Scott to be smarter than that. As athletic director, he should set an infinitely better example for impressionable young people. Indeed, his passenger in the late-night incident was a 28-year-old Lakeside High grad who was allegedly belligerent enough to be charged with disorderly conduct.
But to take Evans' indiscretions to the hypocritical level, he was also a high-profile advocate of sober driving at UGA, broadcasting messages at home football games imploring fans to be responsible. "If you drink and drive, you lose."
Ironically, he may be about to prove that: How he can survive in such a high-profile, role-model job if guilty of DUI is anyone's guess.
People are human. We get that. But as the years go by, with more and more evidence of the gross negligence and idiocy of drinking and driving, we should expect more of each other.
Especially leaders at institutions of higher learning.