As the sonnet has a beginning and an ending, so does a man. He is born and he dies. A sonnet has a certain number of lines and syllables per line. So is a man bound by natural limits to his life. Just as a sonnet is spoiled by the wrong use of freedom, i.e., by violations of its rhyme scheme, etc.
Absolute freedom destroys a sonnet.
It takes away its beauty. It makes it formless. It is rhetorical to ask this, but I will. To take away all restraints is not to make a better man. It is to create a monster.