If I were to teach you boxing, I would give you a set of techniques, principles, and rules to follow that the majority of boxing coaches would agree were technically correct.
If you were then to watch technical analysis of various world champions, from Ali to Tyson, you could probably find at least one great boxer consistently breaking almost every rule I taught you.
That doesn't mean these great fighters were moving suboptimally. It means they understood the rules well enough to know how and when and why to break them.