Say it without apology: Yemeni socialism did that

"The people of the south are generally better educated, a legacy not only of the British but of the Socialist government that ruled here during the 1970s. Although they shattered the economy and suppressed their opponents brutally, the Socialists also put an end to harmful tribal practices like child marriage, championed women’s equality and achieved some of the highest literacy rates in the Arab world.

All those achievements have since collapsed: literacy and education have dropped precipitously across the south, child marriage has returned and lawlessness prevails."