Yes, you indeed did see expat KE pilots staying at that Hyatt. The Hyatt is the base hotel for expats--many of whom have come over from Singapore Airways. First Officer expat pay on the 747 is about $9,000 US per month--all on contract. All expat crews staying at the Hyatt receive roughly 50% discounts on meals.

Whomever said that expats at KE are paid more than their Korean counterparts is dead wrong. Korean national pilots (almost 100% of whom are ex-ROKAF) at OZ and KE are in the top fifth percentile (according to a recent Korea Times) for all salaried professionals in the country--in the same class as US-educated attorneys and physicians in Korea.