Tradition is older than Scripture.
Jesus and his disciples criticized tradition and often disobeyed it. Jesus (contrary to the Catholic church) declared that tradition could be a bad thing in two circumstances.
1. When it contradicts scripture ("You therefore nullify the word of God with your traditions")
2. When it is elevated to an equal plain with scripture ("Teaching for doctrine the commandments of men")
The idea of the church and it's leaders being infallible is controverted by Paul warning the elders in Acts that even from their own midst people would come and try to destroy the flock of God. See also I Tim "they shall turn away their ears from the truth...". As a matter of fact, the vote that declared the Pope and the College of Bishops to be infallible only passed by a narrow margin. I guess only some of them were infallible that day, huh ?