I can only speak of Lion Air, as many of my colleagues from former carriers are LTCs, and the majority are clearly not from the "West". But the important point is that there are those willing to shell out $40 to $50 grand UDS for a pipe dream.
It will be interesting to see, in some 3 to 4 years when they've accumulated their hours if the likes of EK or Etihad will offer them a position considering their lineage of employment, as they were truly pay to play children of the magenta line. In addition working for carriers known to be black balled from the majority of the globe.