People who mind their own business never change the world, though. And since when is telling people to do good and be happy a bad thing? It's how most religions began, for starters.

I do think in a perfect world, with enough base happiness, we WOULD all mind our own business. So I don't disagree with the sentiment.

But I do think with THIS very broken world, we have an obligation to interfere, fight, and try and make things better.

Incidentally, I don't think I'm anywhere close to perfect on this, so I'd see it as a medium-high horse, but I always welcome fellow riders :).