It is not the being seen of men that is wrong, but doing these things for the purpose of being seen of men. The problem with the hypocrite is his motivation. He does not want to be holy; he only wants to seem to be holy. He is more concerned with his reputation for righteousness than about actually becoming righteous. The approbation of men matters more to him than the approval of God.
For, were it not good that evil things should also exist, the omnipotent God would almost certainly not allow evil to be, since beyond doubt it is just as easy for Him not to allow what He does not will, as for Him to do what He will.
Love, and do what you will. If you are silent, be silent for love; or if you cry out, cry out for love. If you chastise, chastise for love; if you spare, spare for love.
My mother spoke of Christ to my father, by her feminine and childlike virtues, and, after having borne his violence without a murmur or complaint, gained him at the close of his life to Christ.