Indeed, I couldn't believe this feature was left out. I kept thinking maybe I just hadn't noticed how to access it yet. But, apparently there really is no high scores table that the game maintains.
I kind of agree with the View expressed above.
On one hand, this is a pretty minor feature; but on the other hand, it should easy to implement, it has been a regular feature of many games for years, and it adds a little pleasure to the game (as well as providing a relative measure of a player's progress in strategy and tactics). So, it really is pretty surprising that such a mainstream feature is missing - just doesn't make any sense to me, NOT to have it.
On the other hand, the lack of this feature does nothing so serious as "kill(ing) the replayability" of the game, IMHO. But, then again, why not have it? ...