George Will's column of a few days ago addresses the contemporary trend of explaining away all irresponsibility and immorality as "disease" to be "treated." He also points out that "abnormality" of any kind, including genius (e.g. the young Mozart) is now widely viewed as something that must be "cured":

http://www.washingtonpost.com/wp-dyn/content/article/2010/02/26/AR2010022603369.html

(Unfortunately, you may need to establish a free account with the Washington Post to access this page.)

While I respect his intellect, I usually disagree with Mr. Wills' options on all topics other than baseball, but I'm 100% with him on this one. I believe that there are such things as right and wrong, even if my idea of where to draw the line between them might differ from yours. NOT everything a person can do is excuseable and morally indifferent.