EDIT: I realize I conflated "people moving to Singapore" with "majority of US expats moving to Singapore." Thanks for catching that, my bad.
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I guess I'm curious about your use of the term "narrowly selfish". What do you really mean by that?
You also say that it would be more "principled and selfless" to refuse to compromise one's ideals, but... I can't help but feel that's a really context-dependent thing.
For instance, can you think of examples where a person's refusal to compromise leads to the suffering of others. You said you wouldn't endorse it in Derek's case, because he'd be forgoing love (and encountering misery). There are many worse cases- think about gay kids growing up in a homophobic family, for example. And worse.
So I feel like there's some unnecessary complexity in what you've expressed- I think what you describe as "principled and selfless" behaviour is a luxury that some people (if not most people, especially those who are poor, handicapped, oppressed, etc) can't afford.
You said that you can't imagine that you'd physically survive in a situation wherein you'd have to compromise your values. Yet you also acknowledge that there are people who live in such situations. So are these people "narrowly selfish?" Is Derek being narrowly selfish? What's the utility in calling a person narrowly selfish?
Thanks for engaging me,
visa