Call me lazy, but contributing to society can be tough. I wanna help, but don't wanna go out of my way. And I don't want any wasteful government involvement.
If this sounds like you, check out this post! Consider the problem of traffic. We could go to the legislature and say we need rail, or this, or that, but I say: "too much effort!" If the slow pokes drove in the right lane and everybody used the left to pass, many problems could be alleviated.
This line of thinking can go far.