The resources that matter to a person are time and money.
When you become a 무적자, your money shrinks but your time grows.
This doesn't mean the total amount of time increases. It means you can spend your time on the things you want, when you want to.
I'd like to call this time flexibility.
This time flexibility can make up for the money you've lost.
- Side jobs: You can earn a little money. See A Field Manual for the Unaffiliated.
- Off-peak discounts: You can use the same products and services for less, and get better quality. On weekday afternoons, shops are empty. Gyms sometimes sell day passes more cheaply at these hours. Even a jjimjilbang or sauna can feel like you've rented the whole place, because no one else is there.