I think it's the most common road to be a millionaire.
Microsoft - Bill Gates
Amazon - Jeff Bezos
Berkshire Hathaway - Warren Buffet
CDProjekt - Adam Kiciński, Marcin Iwiński (They started from absolute nothing, bazar stand with bootleg software)
TOYOTA - Akio Toyoda, branched out from family buisness in textile industry
Literally every single successful business made it's founder a fortune
And the people in the middle? Sure, the people exploited for the production of those goods benefited a lot. The child forced to harvest coffee and chocolate really enjoyed the transaction.
Really? The western companies exploiting them aren't to blame? The western companies that pay off people to look the other way? The western companies that organise military coups? The western companies that murder opposition? The western companies that send their trash to the country to destroy the market there?