What went wrong with Cho’s efforts at direct motivation?

Heather Cho, a top executive for Korean Air, was in charge of the company’s international in-flight service and had set the standards for flight attendants.
She had been actively involved in establishing a new corporate identity for Korean Air during her 15-year tenure at the company. She had made her father, the company chairman, proud by her direct involvement and constant efforts.
Imagine her surprise and concern when, aboard a Korean Air plane waiting to fly out of New York, she was served a bag of nuts in first class when the standards explicitly required the nuts to be served on a plate. Cho was enraged. She yelled at the flight attendant and demanded that the plane return to the gate to “get rid” of the lazy employee. After she got the captain involved and identified her position in the company, the plane turned around and returned to the gate. The errant flight attendant was sent back into the terminal, and the plane departed.