Because Paul chose not to do certain things in Corinth, it opened up the door for him to do other things as the Spirit led him.  What's that?  Reach everyone for Jesus.  You might say that Paul "earned the right to be heard" by letting love lead over his own liberties.  He knew his audience, was secure in his relationship with Jesus, and would run fast and hard!  What a great insight for us all as we desire to reach our world with the love of Jesus.