> People do weird things when given sudden access to money or power.

Given your story its not sounds like this is power grab. More like they actually on spectrum and have some mental issues on top this. Or had mental breakdown because something happened before that money arrived.

Situations when people do something weird, bad or just plain evil for money and power are usually logical. E.g people think they got access to more money they percieve they can earn in next decade, or ever, something that settles them for life.

Earning more than $100,000 and throwing everything away for $95,000 only make sense if you are terminally ill. Or if it was never your real identify in first place and its well planned scam.