Why does the West like to export its own system?

When I was young, I liked a game called "Age of Empires". In this game, there is a class of missionaries. They have no offensive power, but they will surrender and turn the enemy's troops into their own. Once I made a group of Persian war elephants (the strongest melee unit, with a thick blood attack), and I ran into a group of missionaries head-on. When my war elephants rushed past, they were all summoned. My war elephant will hit me in turn. This example tells me: As long as the brain is changed by the enemy, no amount of muscle development is useful. What is the Western export system doing? It's just changing people's minds! After a change of mind, other countries have even owned their people and things in Western countries! A fool would not do such a profitable business!