Poor nations then have the option not to enforce software and copyright laws.
Don't peg anything to GDP. Just keep offering US brands at US$100 or 1000 or some other fee.
Digital enforcement is expensive in every nation. Once a nation is very low cost with exchange rates, whats keeping users globally from buying in that nation?
Per nation price enfacement with activation and per nation ip tracking per account?
Face local digital return laws and refund laws, tax collection per nation?
It will cost more to sell cheap than any poor nation can support in local profits after tax, support, lawyers.
Users won't pay US$10 or $50 for a "legal" version in a poor nation? What for? Support? The next version is "free"?
They can get their own translated copy for as a free download or on physical media for a few $ at a local market.
Games might be the only way to lock in users with multilayer per user accounts.
A $10 game pass in a poor nation vs $120 in a normal nation? The constant hunt for digital sales online of account details been used in wealthy nations?