to gain an advantage for yourself from a situation, especially in a way that other people think is wrong or immoral 从中牟利;捞到好处

The film studio is being accused of cashing in on the singer’s death.
那家电影制片厂被指责利用这位歌手的死来赚钱。

cash in on sth:

to get money or another advantage from an event or situation, often in an unfair way.

Her family have been accused of cashing in on her death.
人们指责她的家人借她的死牟利。