Spiritual growth is far more important.
Some churches teach their own interpretation which hinders spiritual growth.
For example, I met one Christian at a Christmas party at my brother's house, 6 years ago. He was so happy to have been saved because now he could commit any crime and still go to heaven. Really?
Christ said that you can only follow one master. Somehow, I suspect that the supposed Christian was following the master of this world -- ego and its many minions, greed, pride, lust and others.
Some are so attached to their evil ways that any message which makes it seem okay to persist with evil is in itself evil. For the message does not break that attachment, but encourages it.
I grew up the grandson of a Southern Baptist minister, but had to leave the church in order to find my own way toward spiritual growth. I found his teachings to be backward and unspiritual. I've studied many religions and came back to Christianity far more committed to Christ. Am I good enough? No, not yet. I still have a long way to go.
It saddens me to see so many so-called Christians think they already have it made and that they know it all. Is it arrogance and laziness? Only God knows for certain. So, I remain hungry and I'm filled by the words of scripture.