Baptism dogma is useless for the thief on the cross to whom Christ said, “Truly I say to you, today you shall be with Me in Paradise.”
“Baptism dogma is useless for the thief on the cross...”
I don’t know what you mean by the dogma being useless. The dogma might simply not apply because of his situation which prevented baptism at that point. That doesn’t make the dogma useless. It just means it isn’t applicable to him.
http://www.catholic.com/magazine/articles/dismissing-the-dismas-case
In any case, God is merciful to those who sincerely repent. The Good Thief seems to have done that. We call him St. Dismas.