Westerners seem to underestimate how mercenary and brass knuckled politics in the developing world is (no, politics in insert_OECD_country_here is not to the same degree), and assume every bleeding heart activist will become the next Gandhi. Ironically this is how Orban's political career got started as well as an pro-Democracy campaigner in the 1980s and 1990s.
This isn't to undermine activists and NGOs working in these countries, but the default assumption in due dilligence should be that everyone is a crook and then validate.
That said, I definetly saw plenty of glazing of questionable developing country politicians during my time when I was much more HKS adjacent, but this is common for just about every pmajor policy program - it's the only way you can attract big names, and non-Westerners know how to take advantage of that Western naivete (I've definitely used it on occasion despite being raised in North America).