Different people has different priority. It doesn't work for everyone, so you will likely get different answers in here.

From most surveys, Singaporeans say salary is their highest priority. Seems to me they are willing to take any hardship as long as they get a high salary end of the month. They can smile even when they work 18 hours day, under a psychopathic boss.

Some people can handle bad bosses and colleagues better. Probably they know how to play office politics well.

Some people, especially married women, may place work life balance as their top priority, never mind lower salary or terrible environment.