The ones who wanted to leave and the ones who didn't all stayed. The notion of earning over ten thousand a month is still exclusive to the upper-middle class. Even among the middle class, unless you're a company partner, it's unlikely you possess the ability to earn over ten thousand a month.
So, in this era, what does earning over ten thousand a month mean?
It's simple. You've earned the equivalent of someone else's four-year salary without eating or spending a dime, all in just a single month. Calculated per day, your income surpasses someone else's monthly earnings.
Moreover, the economic situation in Sabin City isn't looking good. The unemployment rate keeps rising. You can always see those dejected people on the streets, hitting walls everywhere in their job search. Finding a good job is extremely difficult.
Whether they aim to earn that ten thousand a month or simply want to see if Lynch is a fraud, these people stayed.