A sapling must be hedged about for protection, but when it becomes a tree, a hedge would be a hindrance. So there is no need to criticise and condemn the old forms.
Only something as insane as human beings would ever asked themselves if 'I'm good.' You don't find oak trees having existential crisis. 'I feel so rotten about myself. I don't produce as much acorns as the one next to me.'
We are sinful not only because we have eaten of the Tree of Knowledge, but also because we have not yet eaten of the Tree of Life. The state in which we are is sinful, irrespective of guilt.