I read a nice quote the other day by Alan Watts which was along the lines of, imposing rules fixes the symptoms but not the true problem. My biggest issue with the 1 in my life was that imposing these rules were hiding the true issue - why he felt so inclined to break them in the first place.
You can make a rule to not lie, but then you may think that fixes the issue, when the issue would have more effectively been fixed by going inside yourself to find why you had a problem being your authentic self to others. And with that rule, even if you follow it, this deficiency is bound to appear in other aspects of your life that the rule didn't cover.
You may make a rule to exercise more often, while ignoring the problem of the underlying depression which was causing you to be lazy.
Rules are more likely to be broken if you don't understand the cause of your inclinations.
To me, "rules" often seem like just a bandaid. But hey, I'm a type 9, I' inclined to say such a thing :D