Earlier quoted context omitted.
It's the same situation. You don't have $500k - you have an opportunity to get $500k if you do things right. If it's kept as BTC, there's a number of things that could bring the value to $0 without the scam.
I think this is a pointless distinction. A 500k bank balance is just an "opportunity" to withdraw 500k of cash. There are a number of things that could bring your bank balance to $0 without the scam. 500k of cash is just an "opportunity" to extract 500k of value. etc.
You don't have opportunity to withdraw it - you've got the right to do it.