Pay prestigious universities to host free EA-related courses to very large numbers of government officials from around the world
Empowering Exceptional People
The direct benefit of the courses would be to give government officials better tools for thinking and talking with each other.
The indirect benefit could be to allow large numbers of pre-disposed officials to be seen by <some organisation> who could use the opportunity to identify those with particular potential and offer them extra support or opportunities so they can make an even bigger impact.
The need for it to be free is to overcome the blocker of otherwise needing to write a business case for attendance which may then require some sort of tortuous approval process.
The need for it to be hosted at a prestigious university is to overcome the blocker of justifying to bosses or colleagues why the course is worthwhile by allowing piggybacking off the University's brand.
There are videos scattered across https://www.givedirectly.org but you get their recipients stories in a more raw form from https://live.givedirectly.org (in many cases click on the summary story for past questions and answers with that recipient).
Outside of GiveDirectly, I found https://www.gapminder.org/dollar-street informative.
Disclosure: I work at GiveDirectly