If you’re seriously asking that, then you need to actually look at the world and the people in it, and make more realistic expectations based on what you see. People pay significantly more time and money on what makes them feel good than what they know is good for them. It’s one of the most basic obvious truths of humanity.

Sure, some people focus enough on logic or have enough willpower to do what’s good for them, but when you get a huge group of people together, those individuals fade into the mindless crowd.

Humanity isn’t going to suddenly do what it needs to do simply because it’s necessary, no matter how much we might hope it will. Like a child who doesn’t want to eat their vegetables, humanity needs an authority figure to coerce it into doing what needs to be done, whether that be a governmental body, a revolutionary, or some other figure or organization. They simply operate on their most basic desires otherwise.