(It could be it was a subsidy-exchange between the university and a chinese institution but I didn't get that impression. It could have been a private party as well. In any case it was definitely a scholarship by a US institution - not sure if public or private.)
These friends were brilliant and couldn't have afforded to attend without it. However: last I heard, they have all since moved back to China and are doing quite well for themselves.
This is objectively good news for these people, but that scholarship money was effectively just given to China. There are ripple benefits that aren't so tangible (added diversity, the chance that they could have stayed, the impact they had while here, etc).
Overall it seems "fair" that scholarship money should be converted to a loan if the education isn't used long-term in the same economy as the scholarship.