What you're saying is that the workers in other countries demand lower wages for a given amount of work. >When standard of living starts to rise in one country

What you're saying is that the workers in other countries demand lower wages for a given amount of work. >When standard of living starts to rise in one country (or in the relevant segment of it), it risks losing those same jobs to offshoring itself. E.g. India -> Vietnam. But the original country (e.g. India) tends to maintain a permanently higher standard of living than when things started.