Dhammapada 1:9

The monk's robe does not in itself
Render one free from stain.
If the one that wears that robe
Is lacking in self-control and honesty
He is unworthy of such a robe.

We have all seen religious figures all over the world that expect people to accept them and forgive them because they do wrong.

Jesus said a similar thing, he said it this way "Be hot or cold, because if you are lukewarm I will spit you out". If a person puts a robe on and is not an example of the Dharma and Buddha then they should not put the robe on at all.

It is just a costume if you do not exude the qualities of Buddha in your daily life. The robe also does not protect the wearer from accusations of wrongdoing. Only by being virtuous and upholding the precepts can one be sure to be free from any stain.