No one knows what will happen but countries that can't build working institutions, get rid of corruption and start working for the people will have a very difficult time. This is true everywhere basically but droughts will make it more pronounced.
This is a very Eurocentric attitude. An eye opener for me was when one of my Hindu coworkers in SV told me that he used to believe the USA was less corrupt than India, but after spending a few years here he realized we were just more sophisticated about it. That experience has made me rather a lot more sanguine about westerners calling non-western countries corrupt. The Afghanistan debacle is arguably the biggest rooking of a populace ever.
Your coworker likely moved in privileged circles and therefore experienced less corruption in their home country. I say this as a relatively rich person residing in a poor country. The poor and lower sections of people here bear the brunt of corruption, while people like me pay money to be shielded from corruption.
The Afghan debacle is vastly different. They have 12th century mindset and there is no way democracy could be established there in 20 years. Mark my words, China will tame them in next couple decades.