idbeholdME: Russia gets the lowest prices because it is probably the country with the highest levels of piracy in the world. If the games were offered at their usual prices there, nobody would buy them at all. That is why they are severely underpriced there so at least some people buy them. They know higher prices would be pointless so they try to squeeze out at least some profit instead of none.
As I said, it's about profit, not about fairness. But maybe it's not even all about profit, but about management practices. I mean, do Russians nowadays really pirate more than say Chinese, Indians, Vietnamese, Brasileans ... (all roughly equally wealthy but paying totally different prices on GOG) and if so why? It's really difficult to gather hard facts about people's activity and willingness to pirate. Not every pirated copy is a lost sale and all these things.
What you would actually need to do (if you wanted to really maximize profit) is frequently changing prices and doing lots of statistics. Only then would you have a chance of measuring elasticity of buying interest versus price for each region.
As far as I remember, GOG is not doing that. Russian prices are the lowest in the world for a long time without much change. This rather suggests that they once granted this unearned privilege to the Russian region and since then forgot about it. Higher or lower prices in this or another region might be more profitable, but they don't really want to really maximize the profit.
And as Nalkoden pointed out, the moral implication is also quite terrible. But that's as it is.
