Successful people may do this to improve their company because of competition, but Mick does not have that problem. HR is a mechanism to protect the institution/company's bottom line. HR can warn him against potential discrimination Ref flags. Mick ain't looking at himself, he's cashing checks.
It's not about competition. It's about self-awareness, self-respect, and demanding as much of yourself as you demand of others. That's how good managers think.