Why would "poor folks" in other markets wait?
They could always pirate now, and then buy a catch-up license at a price they could better afford at a later time.
Poorer people have to wait, because the developers have high rent and daily expenses, and price discrimination helps the supplier capture enough of the trade value of their good that they can pay those expenses.
A software program is unlikely to have repeat buyers. It's not like corn or toilet paper, where you use one up and buy another. So, if you hypothetically line up every potential buyer by the price they are willing to pay, you can capture the maximum value of trade by walking down the line and selling one copy to each person at their price. Once you sell one copy to everyone in line, you're done. But buyers keep their price secret, or lie about it, and paying your walking salesperson would eat up all that extra money. So instead, you put your price up on a big board, decrease it over time, and when it drops below a buyer's price, they just step up to the counter and purchase.
Paying more allows a customer to buy earlier. Waiting in line longer allows a customer to pay less. How is this unfair? And if it is unfair, how is that the supplier's fault, rather than being inherent in the copyright system?
Start at $69.99, in English only. Then add language localizations in order of decreasing mean disposable income for native speakers. Gradually drop the price by $5 per quarter, but also randomly put it on sale for 25% off for 36 hours at a time, to catch the folks who wishlisted the game and are watching the price.
Rich folks buy at $70 and play it right away. Poor folks wait 3.5 years and then get it for $5 .