Depends. Versus some third world or developing country? Of course.

Versus other developed countries? South Korea has its pros and cons just like any other.

According to your framing, "third world or developing countries" are wholly and obviously less desirable ("of course"), than developed countries.

I don't agree with that statement, but let's follow the logic.

Most countries are not developed. Therefore, by your own definition, South Korea is one of the best places to live on Earth.

Wealth is bad in capitalism because it makes capitalists redundant.