I was raised Mormon (LDS) and there are parallels; basically they believe Mormonism is the one true and complete denomination of Christianity and once you learn this, you need to spread that truth (mandatory 2 year missions for men, and a STRONG culture of missionary work through life), also, no one goes to hell in Mormonism except those who learned this truth and then later denied it/left it (called a son of perdition).
So my parents believe I'll go to hell without the likes of Hitler because he never was taught "the truth" lol