Agreed. I’d add there’s something perverse and elitist about ‘solving’ this problem by making it easier for one group of users and more difficult for the rest.
Ranking common countries first only seems like an issue because of our sensitive political climate. Or do you still think it's "perverse and elitist" to put commonly bought bus tickets before more rarely bought options like season tickets in ticket machine menus?
I don't think that's a good analogy. But my comment reads way harsher than I intended it. I've probably done it myself in the past – sticking a handful of key countries at the top of the selector. My point is it isn't good design, it's a lazy hack. And I think if I was a user from one of the 2nd tier countries, I'd find it pretty elitist. The ticket machine analogy doesn't apply.
You could also solve the problem a lot smarter by detecting the current locale and using that to determine the suggested option, or even better by using a combo box. It’s really annoying to scroll through more than 5 items in a drop down menu, no matter the content :)
I can see how it can be perceived as potentially elitist if you put certain countries on top, but it can be more of the product understanding it's market. It knows that one country is going to use it's product more than others. If it decides to expand, I would hope that it would use other potential factors to sort a likely country the user is from to the top as well.