> I mean that countries with lower median income deserves cheaper products.
So if you make $20,000 and live in a country with a median income of $40,000 then you should pay higher prices than someone who makes $200,000 and lives in a country with a median income of $10,000? Why?
Also, that's not really how prices work for non-monopolies. If everyone can profitably produce something and sell it for $100 in e.g. South America and then you try to charge $200 in the US or Europe, your competitors are just going to take your customers by charging $100 there too. The ability to engage in price discrimination shenanigans is evidence of an uncompetitive market.
> Why?
Just because of statistic.
But actually, of course, it would be fair to make individual prices. E.g. there is a photo-camera for 7000, it makes very very good photos. Someone makes every day money with photos and buys it. Someone else wants also very good photos for non-professional private use, family and even for posts in WEB (without a fee, only donations). But this someone else must pay the same 7000.
Needless to say that in case of individual prices, additional rules and locks will apply.
BTW, some electronic devices are sold cheaper for academics (universities, students).