浑水摸鱼（渾水摸魚）　

◎ 浑水摸鱼 húnshuǐ-mōyú

[fish in troubled waters;try to make a calamity the means to personal profit] 比喻乘混乱的时机从中捞取不正当的利益

少数豪门,浑水摸鱼,越来越富,越花越有