The 8th amendment is about bails, fines, and punishments. Punishments cannot be cruel or harsh, and fines have to "fit the crime." This means that your fine has to go in accordance with the crime. For example, you cannot charge someone 20k$ for a normal speeding ticket, as a reasonable fine for speeding would be around 200$-1000$. The positive side about this amendment is that it places boundaries on your fines and punishments, making them less harsh and/ or cruel. The negative side to this amendment is that it is unspecific, and more people may commit more crimes knowing that their punishment is jail.