USD net income + pension / provident + housing + education + insurances + medical cover (cost of equivalent) + perks (otherwise taxable). Who else pays better NET, (save for US legacies)? I do suggest everyone in Europe (geographical) gets provided less. I do not wish to be confrontational, after all we agreed on the first half which probably triggered me to chime in, and yes it's just a wild guess from my side.
I have good faith with the majority here saying the cost of the place and life experience makes the income for many just not worth it, even by quite a margin. That's a different kettle of fish to what you said, hence my remark.