You can break the rules to succeed. In fact, you probably should.
But breaking principles will come back to haunt you in the long run.
Example – Google broke a lot of ‘rules’ when they made their search engine. Unlike the other engines at the time they didn’t have hundreds of links on their homepage.
But they kept a very important principle – delivering quality unique content. And they still keep it.
So, break as many rules as you can. Try new things. Experiment. But think very carefully before you ignore a principle. Principles (like gravity) always win in the end.