This was a transaction, one she was coerced into participating in.
This body of hers was not just used to please Mr. Lu, for his lascivious enjoyment. He so meticulously enhanced her "worth" because, should he choose, he could completely coerce her into being used and toyed with by anyone else. Whether it be a rich kid, a leader, a noble, a boss... or even those who sneaked into her dorm that day, whether they were filthy migrant workers or vile hooligans... This body she cherished immensely, the one she once considered the most precious and solely hers, is now firmly controlled by the "cultured and elegant" "kind gentleman" Director Shi, with no chance of having autonomy again. She can only let him set the price, let him sell it, let him humiliate it, and use it liberally.