The answer is simple: Sing-a-poor is in the 16th century while the world is now in the 21st. More or less, the world is led by 21st century minded leaders. The 21st century people are adopting trains even bullte train for mass transport, sing-a-poor's train is f@rting camels
There is no valid statistics to go into the world development metrics, because Pooriteria is invalid.