If you have to ask if there's benefits, you're doing it for the wrong reasons. Don't be a good person because you think you'll get something out of it, be a good person because it's the right thing to do. No, it isn't easy, and yes, it's often a thankless endeavor, but do it anyway. You never know; you might bring other people around to your way of thinking and thus make the world a kinder place in general, and that's a worthy cause in and of itself.