Why do some people think that they can "save the world" through these big-world decisions? Why is it that some people believe in their moral superiority to constantly virtue signal?

I'm sorry, but to think someone can be the next Caesar, Martin Luther, or Pope Leo would have overwhelming odds stacked against them, moreso with this modern world of multiple interconnections. I'm not saying that they shouldn't try, it's just seems so much to put all that burden on one person themself. Even then, most spectacular people in history had teams of hundreds, thousands, and even millions to actively support the figurehead namesakes.

The more I've gotten older, i've come to realize the best anyone can do is take care of themselves, their families, and their small communities. Theoretically, with multiple contributing small bricks should be able to hold bigger foundations.

Maybe Christ was right all along, just be a good dude in your immediate surroundings and the rest should take care of itself.