Nothing really. Piracy is widespread in my country and a lot of software being pirated isn't translated.
End result? People learned English.
which would be a preferred goal to have? I'm mean, it doesn't hurt to have more russians beeing more capable in english?
You really think a missing translation is going to protect anything? I'm not from Russia, but close enough. We've seen a lot of unofficially translated software (and games) back in the 90s. Some of those translations were really good. And you don't need source code to do it.