Of course it depends on your "belief system". It's called morals. And what makes a certain set of moral rules superior to a certain other set? That's a centuries old question that will probably not be settled in this forum, but a good approach is the wideness of its adoption among the population. There's probably much more consensus on murder being wrong, than on providing free education being wrong.
But you're welcome to challenge both in the courts of justice and public opinion.
Not odd at all. His options were either US-averse Latin American countries (Ecuador, Venezuela, Cuba) or China-Russia. And between those, he took maybe the safest, as said latin american countries may not be able to protect him if the US gov is truly determined to get him.
MS in CS here. We all know we did it for the diploma: employers value that MS degree, so it gives you a better negotiating position in pretty much every hiring/selling scenario.
Chaos splits around its place
Order grows from less