Does our worldview matter? Yes.
Mother Theresa’s worldview led her to alleviate the suffering of millions through her renown and those who followed her. On the other hand, the worldviews of Mao, Stalin, Hitler, Marx, and Lenin led to the suffering and murder of millions.
Some 18-year-olds contemplate suicide because they view the world as hopeless and meaningless. On the other hand, some 80-year-olds dying of cancer still find joy and peace in life. How we view the world deeply affects how we live our lives.