So, the common folk has duties because he is not liberated, and the liberated one puts duties upon himself, because he is liberated.**
That’s the way this is.
The one in shackles has to bear kartavya or duties as punishment. You’ll have to live within your duties because you are not liberated. This is your punishment.
And the liberated one loads himself with duties, not because he is full of passion towards the world, but because he has compassion.