This post is inspired by a set of events I do not have the freedom to speak of on this website due to some bulky contract documents I signed. 
1. Sin of Assumption
Assuming that good intentions are enough, or that people can see those intentions on their foreheads, or smell the sweetness of their vision from a mile off. Most people won’t bother, and most of those who would bother, can’t.
2. Sin of Justification
Justifying your controversial actions on the assumption that people know you have good intentions. See 1 again.
3. Sin of Over-Compensation
Promoting acts you have carried out to cover up for your shortcomings, at the expense of a wholistic or balanced view of the situation.
4. Sin of Independently Compartmentalising
Especially when in a group situation. A good intentioned person may tend to compartmentalize in the pursuit of a certain outcome. This is different from prioritizing, in that the entire objective (or big picture) is sacrificed for an ideal (desired state – utopia). This is tantamount to being closed-minded.
5. Sin of Romanticising Consequences
Believing that bad things would not happen to good people, thus acting carelessly in action. It also leads to making mistakes that often turn out to be their undoing.
6. Sin of Inflexibility
Let me point out that I refer solely to flexibility in methods. Morality and Egotism are a dangerous mixture that always explode in the face of the good intentioned.
7. Sin of Dissipation
Taking the foot of the pedal too early is another dangerous mistake. What is worth doing is worth sticking to. A pause in action may be judged as a lack of conviction or a lack of ability – both do no good to your reputation.
Ok. Comments please. Let’s refine this.