The money Chen Yan casually threw around was a simple, direct, and complete demonstration of his financial power.
It also confirmed to the actors that he was indeed a wealthy "rich person."
The entertainment industry is very pragmatic.
Without money or status, you are surrounded by "bad people."
But with money and status, you are surrounded by "good people."
So, after Chen Yan demonstrated his worth, those actors who had initially come just to coast through their days and clung to Lu Man's popularity changed their attitude quickly. They took turns eagerly toasting to Chen Yan and Lu Man.
They fully demonstrated what it means "if you have money, you can do anything."
Even Yu Qiao Qiao, who obviously had a special relationship with Chen Yan, was not unaffected as they had also respectfully toasted her.
After all... abundance of courtesies offends no one.