To call Russia a "cultural dead end" is a bit much, considering all the great artists of various kinds that country has produced. In fact, you'll find that famous Russian novels like Anna Karenina and Doctor Zhivago feature trains as motifs.
I think US trains did have their window though. At one time they would have been the main way to get into the interior or across the continent.
It's funny as I'm quite fan of quite a few Russians, yet they're all people who either died before the Russian system was created or are those lucky enough to escape.
It's like saying certain rats solve the maze because the path is simpler. Except that the failing rats happen to have a different incentive.
You'll have to make yourself clearer, I have no idea what you're implying
The private sector unfortunately is too short sighted, and will optimize for profit. Doesn't seem to work well for nationwide infrastructure..that being railroads, but also the internet.