[Serious] I know a family who greatly lied about their finances to get their children into various Ivy League institutions throughout the previous 4 years. What should I do?

More Info: I [21M] have known this family personally for over 15 years. They have always been well off and able to take expensive biannual vacations to other countries with their children. However, they have been able to lie about their finances and claim to be in poverty as the dad runs his own business and keeps the money in China. The dad has been able to get his own son and nieces and nephews (under the guise of them being his own children) into Princeton, UPenn, and Harvard, all getting full rides because he claims poverty in the applications. I think this is grossly unfair to students who worked so much harder than these kids and have much less well off lives and end up barely, if at all, receiving any financial aid from such universities because of people like this who cheat their way into free money. What can I do to? Can I let these universities know? I have proof on the sons' social media of them going on various expensive cruise vacations every year.

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