Fun and Luv are Valued at Southwest    #40 in the Green Goldfish Project – Southwest Airlines    Taken from a post by Dr. Fathi El-Nadi    Southwest Airlines. Its relaxed culture can be traced back to unconventional CEO Herb Kelleher, who encourages informality and wants staff to have fun at their jobs. Employees are valued, with Kelleher acknowledging births, marriages and deaths by notes and cards.