I see your point about it being a way to disperse carrots for political leverage. But it also looks a a lot like a Cold War version of teaching Afghans about the American constitution.
But the projects that are being funded today don’t resemble the ones in the 60s-80s. And thats not to suggest it previously was unbiased and now is politicized, but the parties and their values have changed. So that old bureaucratic organization has a new mission
Giving out crops promoted the idea that market capitalism brought prosperity. That isn’t enough for liberalism which has moved up Maslows hierarchy to meaning and purpose. Physical aid is merely a means for bringing the true goods - social justice, equity, inclusion, education, etc.