There was a great John Oliver episode about how Cigarettes are sold in African and South Asian countries. Any effort to regulate the market, like introducing warning labels, limiting tobacco ads, or even just disallowing the sale of individual cigarettes in front of schools, was immediately met with huge backlashes by big tobacco.
If your countries GDP is 5 Billion US-D and Phil Morris has a turnover of 80 Billions US-D plus the lobbying power to have the US or EU threaten sanctions against that country, it is pretty darn difficult to provide the same level of consumer protection laws.
Don’t blame the countries that are on the short end of neocolonialism, when your government is complicit in it.