Shin Woo-seok acted on his own; should the company be liable for damages?

ADOR, the agency for the girl group NewJeans, has won the second instance of a damages lawsuit against the advertising production company Dolphiners Films for "unauthorized disclosure of a music video."
The Seoul High Court's 5-3 Civil Division (High Court Judges Kang Seong-hun, Song Hye-jeong, and Kim Dae-hyeon) ruled in favor of the plaintiff in part, upholding the first instance ruling in the damages claim filed by ADOR against Dolphiners Films and its CEO, Director Shin Woo-seok.
Court rules, "Dolphiners Films to pay 1 billion KRW to ADOR"... Shin Woo-seok's personal liability denied.
He acted entirely on his own; why should the company pay the damages?