Take, for example, an intelligent person who happens to have a personality disorder, like PDST from a war. They may know they have certain inclination that are disordered. This illness has chemical triggers, but it also has external triggers. All right, so, eventually he learns that there are certain triggers externally, and that he needs to avoid overindulging --- because it leads to other vices of dissipation. He learns to not hang out with people who are careless in their conversation, lest he become more likely exposed to something that reminds him of an experience in the war. He avoids alcohol, and those who abuse it, and movies that glamorize it, etc. and have great violence. This greatly minimizes his chances of having another episode, or whatever they are called. I've known a few people who were in Vietnam that had to do these things, so I think this is a good example of what I'm trying to say.
Many things that used to be considered moral evils are now broadly excused as the norm and are even lauded to have special rights. This is the direction of our society, which makes so many excuses that it blurs the lines between right and wrong. I'm not saying that people with these problems shouldn't be helped, etc. Many of us have gone through various levels of long-term stress, anxiety, depression, etc., which is exacerbated when we are isolated, as many people tend to be in this day and age, where people in general are increasingly becoming motivated by fear and a lack of gratitude to God for both spiritual and temporal goods. I don't believe we ought to judge others as to their condition (Concern is never wrong though) however, I don't believe that each person should make excuses for their own conditions, whether it be physical or emotional setbacks, and become slaves first to spiritual sloth and presumption before slaves while giving in or more deeply ingraining their wills to the disordered passions.