I'm no currency or taxation expert, but the vast majority of games in that list look as if they're priced at about the same for all locations if you factor in local taxation and weakness of currencies. Quite a number don't price for Argentina, so EA are acting in common with them.
The discussion about whether a game should cost the average of 1h, 2h or 24h of wages is a common one that comes up every time the price changes. If you live in Palestine you probably can't buy anything as many companies block them.
No matter how much we complain, I've never seen the complaints about pricing here make any difference to EA policy. Threats to leave - or just leaving - do have an impact on the income, but the people who decide the pricing structure won't be the EA or EE staff who read these posts.