Once you have enough of it to live a comfortable life, money just becomes about power. So, what we have is some spoiled rich asshole who is used to having influence and power being shown that most of that was a gift. That gift has been recinded, and so the only control he has left is money.

He's spending some of Reddit's current and future earnings on stepping on necks. Because that's what the cash was going to be used for, in one way or another, anyway.