A rule is preferable rather necessary. Because it is upon to us, following it or not. If a situation is dire, and we have no choice we will break the rule.
The rule is defined to expect a person to behave in a certain mannerism. These rules become ineffective with time, and it has to be validated with changes.
I don't say we have to break rules, but to extend our boundaries sometimes we need to break our rules.

What do you guys think about breaking rules?