Protestantism is a culture of individuality, willpower and loneliness.
Catholicism is a culture of dialogue.
Orthodox Christianity is a culture of joy.
As a result, Protestants try to understand and improve themselves to change the world for the better.
Catholics try to understand the Other and establish a conversation.
And the Orthodox love life and try to express this love. Hence the notorious resistance to change. Why change if everything is gooooood?