Works for me. I'll make it my new policy.
More seriously: get involved with people that are reasonable. You'll be MUCH happier. If you are open to changing your opinion, you'll learn from them, and because they are reasonable, they'll be inclined to listen to your ideas.
I've chosen "high" academia for myself, even though they aren't perfect I'm sure it takes at least some maturity to make it to places like MIT or Harvard. The trick is to get involved with people trying to improve things that you want to improve too, while just being a slightly more developed type. Our little "MBTI cult" up here in Alaska has elements of it: we're all very interested in development, and are constantly seeking it, and although we all have very different goals for our lives, we all seek to improve the world in some way.
"It is pointless to try to reason a man out of a thing he was never reasoned into in the first place." -Jonathan Swift
I've been having to learn this lesson myself. I know it is hard to do it, and maybe sounds a little heartless, but abandon the thoughtless. Abandon them and don't look back. Be there for when they are ready (and they'll seek when they are), but those who are not ready are impossible. Just forget them.
The hard part, I know, is that the thoughtless get into our society, government, etc, and try to push on us. Don't worry about it, just do the best you can and be dedicated to being awesome. Separate yourself from the thoughtless as much as you can: just kindly decline to be a part of them. They'll call you a snob, they'll try to bring you back down to them, but just go about your business. Be kind, but just don't engage.
This attitude has worked wonders in my life. At my job here, only my direct supervisor even knows my name. I do good work, but I don't get bothered with the horrible gossip, close-minded (and honestly stupid) conversations about how x people with different points of view are y, and the boring boring boring conversations about clothing and what I ate for supper last night. I just put in earplugs, and refuse to participate.