I understand Ock Joo-hyun's feelings; you'd have to work your whole life with 5 billion won.

That amount of 5 billion won in electronic assets isn't even enough to achieve FIRE;
it's an amount where you still have to keep grinding on stage to make money.
That's why there's anxiety, and why someone might try to hit the jackpot with excessive leverage and end up ruined.
While that amount looks large to an average person,
once you actually possess it, it is a very insufficient amount..