The next logical thought, of course, is that if the man is still lying in the ditch the next time you pass by on the other side, it must be because he refused the Official Help of The State, and therefore prefers the ditch.
In short, it destroys charity.
Roger Scruton seems also to have figured this out:
"All of us have social instincts which prompt us. When we see somebody in trouble, we help. And the great question is, when the state steps in, do they still go on doing this? And actually, they don't – and you find when you look to eastern Europe" ..."when the state took over everything, you find this great vacuum of charitable feeling, which is a huge loss of social capital. I think we still have social capital here because the state hasn't expropriated all these things … The question is how to release it and make it work."