2-hour round-trip commute in Seoul for 70 million KRW vs. 15-minute commute in Gwangyang for 70 million KRW

‌2-hour round-trip commute in Seoul for 70 million KRW (Mid-sized company)
vs
15-minute commute in Gwangyang for 70 million KRW (POSCO)
For reference, housing prices in Gwangyang: standard size within 3 years of new construction is 300 million KRW / within 5 years is 280 million KRW / within 10 years is 230 million KRW
Can those living in Seoul/Gyeonggi definitely move down to Gwangyang to live?