Sinners that are guilty of incontinence excessively indulged or submitted to passions, which includes those that were in life lustful, gluttonous, avaricious and wrathful. Each of these sins involves succumbing to non-rational desires, be they spirited or appetitive. Religion designates degrees of severity to sins. However, it does not seem that religion is dictating the order of the sins in Dante's Hell. For, religion does not stress the importance of using ones intellect fully and correctly.
Religion often stifles freethinking.
It forces its followers to think and act in a very strictly contrived fashion without ever questioning the church's teachings. The oppressive nature of religion is clearly exhibited in The Name of the Rose. For instance, Jorge, a monk, contends that he cannot see any reason to doubt. Moreover, the pursuit of knowledge is also highly controlled. Monk novices were strongly advised against reading particular literature because it supposedly put ideas in the novices heads that could be damaging to their development into proper monks.