I would rather work as an engineer building stuff than sit on a beach all day.

Also, there's good stress and bad stress. Treating someone with an acute cardiac arrest is probably quite stressful, but also very meaningful. Dealing with your boss having an 'episode' and needs some slide set reworked by 12 o'clock is stressful but also pretty devoid of any larger meaningful purpose.

I would assume their motivation is money and having a job with high purpose.

1st world countries with social democratic values seem to do it with money.

No, doctors and nurses learn their skills in the free, public, pretty high-quality education.

I can only speak for my own country - but becoming a doctor is highly attractive here in spite of it being hard work.

Nurses, not that attractive, but they are paid a decent middle class salary as compensation for the hard work.

I've never been to the Caribbean - you would have to ask someone else.

And a good social safety net helps the workforce maintain the productivity by keeping it healthy and educated. Furthermore, it removes concerns about health care insurance, sudden unemployment, education for the kids, etc.

I see the tax I pay as an investment in the people and society. Society helped me get good health care and take a good education, even though I come from what would be a lower class home in much of the world. I pay that gift forward to someone else - very likely to be people in my own family.