Wish story would be more full. South Koreans are not allowed to gamble, but foreigners can gamble in South Korea. Imagine how this story would look if fired employee was hired foreigner. I would also wish to know how exactly they found out he was a gambler. If he has used bank PC for gambling, that is inacceptable. If he has used his own mobile, then banks interference in private life in inacceptable.
Even if you are a foreigner, in addition to government regulations, you also need to comply with the regulations of the bank/company where you work. You are their employee and you need to follow their rules, and with the anti-gambling culture in Korea, it is no surprise that banks would prohibit gambling.
What kind of thinking is that that if you are a foreigner working for a company you are excused from their laws??? I do not think that is how it works. If you are working in the country, you are most likely residing in that country, a company from that country pays you, you also benefit from the country's taxes so why should you be excused from following their rules? I know people who work overseas and they are protected at most but they are still expected to follow most of the general rules and regulations in the country where they are working in.
Stealing money from a bank/company is never easy but for a gambling addict with no money to gamble anything is possible.
Is there no better motivation than money? Lol. A person hungry for money will do anything to get some food.