If you don't believe your own faith is "superior", then why do you continue to practice it? Don't we all, at some level, think our own is the best?
Yes, except that we don’t go around hitting people over the head with that idea and offending them!
Maybe some of us have manners and respect for others' beliefs, and feel secure enough in our own beliefs to not have the urge to try to inflict it on other people.