That bring up an excellent point: is there a strong correlation between high-PDI countries and cheap outsourcing? Even more un-PC: is there a correlation with low-PDI and high-GDP?

No need. This kind of stuff happens even to people working for the same company, in the same building, in low PDI countries.

Outsourced projects fail for exactly the same reasons that other projects fail. The difference, if there is one, is that outsourced projects are more often set up to copy the exact features that are practically guaranteed to lead to disaster.