I feel like there’s a large voting demographic that believes in “fuck you, got mine” and the last 20 years do not give me hope for a future where it is fixable

Let’s say I raise an army, take over the world and kill anyone who shows signs of opposition.

If I fix all of the world’s problems then what’s to stop someone from killing me so they can step into that role and ruin it? If I live to be 100, what’s to say my replacement puts the issues of the many above themselves?