...but this is the real objection to that torrent of modern talk about treating crime as disease, about making prison merely a hygienic environment like a hospital, of healing sin by slow scientific methods. The fallacy of the whole thing is that evil is a matter of active choice whereas disease is not.
It isn't that they can't see the solution. It's that they can't see the problem. They can't see the problem if they are looking in the wrong place. They can't see the problem if they have blinders on - for 'none are so blind as those that will not see'.
There is only one healing force, and that is nature; in pills and ointments there is none. At most they can give the healing force of nature a hint about where there is something for it to do.