The numbers of fallen leaders in sports, business, entertainment, and politics grows each day. Why do so many influential leaders engage in risky behavior that sends them plummeting from positions of power?

Consider the cases of NYC mayoral hopeful Anthony Weiner, Yankees star Alex Rodriguez, and hedge fund manager Steven Cohen. Some candidates barely make it out the gate (Herman Cain) before they become "disqualified."

As employment professionals, we may ask: "How can we develop a more failsafe way to weed out leaders who may have risky, impulsive, addictive, and possibly immoral lifestyles? Do we have a role in directing them toward the help they need?"